Mercurial > hg > monetdb-java
annotate src/main/java/nl/cwi/monetdb/jdbc/MonetDatabaseMetaData.java @ 380:bf521f343172
Added support for new Java 8 java.sql.Types: Types.TIME_WITH_TIMEZONE and Types.TIMESTAMP_WITH_TIMEZONE.
| author | Martin van Dinther <martin.van.dinther@monetdbsolutions.com> |
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| date | Wed, 07 Oct 2020 18:29:02 +0200 (2020-10-07) |
| parents | d7661075ebf7 |
| children | 3c224b31bd29 |
| rev | line source |
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1 /* |
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2 * This Source Code Form is subject to the terms of the Mozilla Public |
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
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5 * |
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Update Copyright year.
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6 * Copyright 1997 - July 2008 CWI, August 2008 - 2020 MonetDB B.V. |
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7 */ |
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8 |
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9 package nl.cwi.monetdb.jdbc; |
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10 |
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11 import java.sql.Connection; |
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12 import java.sql.DatabaseMetaData; |
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13 import java.sql.Statement; |
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14 import java.sql.SQLException; |
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15 import java.sql.ResultSet; |
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16 import java.sql.ResultSetMetaData; |
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17 import java.sql.RowIdLifetime; |
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18 import java.sql.Types; |
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19 |
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20 /** |
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21 * A DatabaseMetaData object suitable for the MonetDB database. |
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22 * |
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In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
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23 * @author Fabian Groffen |
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24 * @author Martin van Dinther |
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Updated JDBC driver to comply with JDBC 4.2 interface now we compile for Java 8. This includes:
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25 * @version 1.0 |
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26 */ |
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27 public class MonetDatabaseMetaData |
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28 extends MonetWrapper |
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29 implements DatabaseMetaData |
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30 { |
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31 private final MonetConnection con; |
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32 |
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33 public MonetDatabaseMetaData(final MonetConnection parent) { |
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34 con = parent; |
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35 } |
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36 |
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37 /** |
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38 * Retrieves whether the current user can call all the procedures |
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39 * returned by the method getProcedures. |
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40 * |
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41 * @return false because we currently return all procedures from sys.functions |
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42 * and do not filter on EXECUTE privilege or procedure ownership. |
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43 */ |
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44 @Override |
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45 public boolean allProceduresAreCallable() { |
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46 return false; |
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47 } |
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48 |
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49 /** |
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50 * Retrieves whether the current user can use all the tables |
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51 * returned by the method getTables in a SELECT statement. |
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52 * |
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53 * @return false because we currently return all tables from sys.tables |
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54 * and do not filter on SELECT privilege or table ownership. |
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55 */ |
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56 @Override |
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57 public boolean allTablesAreSelectable() { |
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58 return false; |
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59 } |
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60 |
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61 /** |
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62 * What is the URL for this database? |
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63 * |
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64 * @return a reconstructed connection string |
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65 * @throws SQLException if a database access error occurs |
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66 */ |
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67 @Override |
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68 public String getURL() throws SQLException { |
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69 return con.getJDBCURL(); |
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70 } |
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71 |
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72 /** |
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73 * What is our user name as known to the database? |
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74 * |
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75 * @return sql user |
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76 * @throws SQLException if a database access error occurs |
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77 */ |
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78 @Override |
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79 public String getUserName() throws SQLException { |
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80 return con.getUserName(); |
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81 } |
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82 |
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83 /** |
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84 * Is the database in read-only mode? |
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85 * |
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86 * @return always false for now |
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87 */ |
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88 @Override |
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89 public boolean isReadOnly() { |
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90 return false; |
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91 } |
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92 |
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93 /** |
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94 * Retrieves whether NULL values are sorted high. Sorted high means |
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95 * that NULL values sort higher than any other value in a domain. |
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96 * In an ascending order, if this method returns true, NULL values will appear at the end. |
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97 * By contrast, the method nullsAreSortedAtEnd indicates whether NULL values are sorted at the end regardless of sort order. |
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98 * |
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99 * @return false because MonetDB shows NULL values at the beginning upon ORDER BY .. ASC |
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100 */ |
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101 @Override |
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102 public boolean nullsAreSortedHigh() { |
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103 return false; |
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104 } |
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106 /** |
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107 * Retrieves whether NULL values are sorted low. Sorted low means |
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108 * that NULL values sort lower than any other value in a domain. |
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109 * In an ascending order, if this method returns true, NULL values will appear at the beginning. |
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110 * By contrast, the method nullsAreSortedAtStart indicates whether NULL values are sorted at the beginning regardless of sort order. |
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111 * |
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112 * @return true because MonetDB shows NULL values at the beginning upon ORDER BY .. ASC |
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113 * |
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114 * @return negative of nullsAreSortedHigh() |
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115 * @see #nullsAreSortedHigh() |
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116 */ |
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117 @Override |
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118 public boolean nullsAreSortedLow() { |
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119 return true; |
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120 } |
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121 |
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122 /** |
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123 * Are NULL values sorted at the start regardless of sort order? |
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124 * |
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125 * @return false, since MonetDB doesn't do this |
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126 */ |
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127 @Override |
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128 public boolean nullsAreSortedAtStart() { |
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129 return false; |
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130 } |
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131 |
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132 /** |
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133 * Are NULL values sorted at the end regardless of sort order? |
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134 * |
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135 * @return false, since MonetDB doesn't do this |
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136 */ |
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137 @Override |
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138 public boolean nullsAreSortedAtEnd() { |
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139 return false; |
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140 } |
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141 |
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142 /** |
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143 * What is the name of this database product - this should be MonetDB |
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144 * of course, so we return that explicitly. |
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145 * |
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146 * @return the database product name |
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147 */ |
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148 @Override |
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149 public String getDatabaseProductName() { |
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150 return "MonetDB"; |
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151 } |
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152 |
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153 /** |
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154 * What is the version of this database product. |
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155 * |
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156 * @return the mserver5 version number string |
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157 * @throws SQLException if a database access error occurs |
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158 */ |
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159 @Override |
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160 public String getDatabaseProductVersion() throws SQLException { |
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161 return con.getDatabaseProductVersion(); |
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162 } |
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163 |
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164 /** |
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165 * What is the name of this JDBC driver? |
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166 * |
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167 * @return the JDBC driver name |
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168 */ |
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169 @Override |
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170 public String getDriverName() { |
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171 return "MonetDB Native Driver"; |
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172 } |
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173 |
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174 /** |
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175 * Retrieves the version number of this JDBC driver as a String. |
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176 * |
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177 * @return the JDBC driver version string |
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178 */ |
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179 @Override |
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180 public String getDriverVersion() { |
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181 return MonetDriver.getDriverVersion(); |
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182 } |
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183 |
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184 /** |
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185 * What is this JDBC driver's major version number? |
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186 * |
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187 * @return the JDBC driver major version number |
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188 */ |
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189 @Override |
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190 public int getDriverMajorVersion() { |
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191 return MonetDriver.getDriverMajorVersion(); |
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192 } |
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193 |
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194 /** |
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195 * What is this JDBC driver's minor version number? |
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196 * |
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197 * @return the JDBC driver minor version number |
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198 */ |
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199 @Override |
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200 public int getDriverMinorVersion() { |
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201 return MonetDriver.getDriverMinorVersion(); |
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202 } |
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203 |
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204 /** |
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205 * Does the database store tables in a local file? |
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206 * No, it stores them in files on the server. |
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207 * |
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208 * @return false because that's what MonetDB is for |
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209 */ |
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210 @Override |
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211 public boolean usesLocalFiles() { |
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212 return false; |
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213 } |
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214 |
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215 /** |
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216 * Does the database use a local file for each table? |
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217 * |
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218 * @return false for it doesn't |
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219 */ |
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220 @Override |
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221 public boolean usesLocalFilePerTable() { |
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222 return false; |
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223 } |
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224 |
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225 /** |
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226 * Does the database treat mixed case unquoted SQL identifiers |
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227 * as case sensitive and as a result store them in mixed case? |
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228 * A JDBC Compliant <sup>TM</sup> driver always returns false. |
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229 * |
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230 * @return false |
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231 */ |
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232 @Override |
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233 public boolean supportsMixedCaseIdentifiers() { |
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234 return false; |
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235 } |
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236 |
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237 /** |
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238 * Does the database treat mixed case unquoted SQL identifiers as |
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239 * case insensitive and store them in upper case? |
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240 * |
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241 * @return true if so |
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242 */ |
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243 @Override |
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244 public boolean storesUpperCaseIdentifiers() { |
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245 return false; |
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246 } |
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247 |
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248 /** |
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249 * Does the database treat mixed case unquoted SQL identifiers as |
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250 * case insensitive and store them in lower case? |
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251 * |
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252 * @return true if so |
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253 */ |
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254 @Override |
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255 public boolean storesLowerCaseIdentifiers() { |
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256 return true; |
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257 } |
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258 |
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259 /** |
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260 * Does the database treat mixed case unquoted SQL identifiers as |
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261 * case insensitive and store them in mixed case? |
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262 * |
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263 * @return true if so |
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264 */ |
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265 @Override |
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266 public boolean storesMixedCaseIdentifiers() { |
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267 return false; |
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268 } |
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269 |
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270 /** |
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271 * Does the database treat mixed case quoted SQL identifiers as |
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272 * case sensitive and as a result store them in mixed case? |
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273 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
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274 * |
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275 * @return true if so |
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276 */ |
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277 @Override |
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278 public boolean supportsMixedCaseQuotedIdentifiers() { |
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279 return true; |
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280 } |
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281 |
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282 /** |
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283 * Does the database treat mixed case quoted SQL identifiers as |
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284 * case insensitive and store them in upper case? |
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285 * |
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286 * @return true if so |
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287 */ |
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288 @Override |
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289 public boolean storesUpperCaseQuotedIdentifiers() { |
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290 return false; |
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291 } |
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292 |
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293 /** |
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294 * Does the database treat mixed case quoted SQL identifiers as case |
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295 * insensitive and store them in lower case? |
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296 * |
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297 * @return true if so |
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298 */ |
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299 @Override |
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300 public boolean storesLowerCaseQuotedIdentifiers() { |
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301 return false; |
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302 } |
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303 |
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304 /** |
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305 * Does the database treat mixed case quoted SQL identifiers as case |
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306 * insensitive and store them in mixed case? |
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307 * |
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308 * @return true if so |
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309 */ |
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310 @Override |
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311 public boolean storesMixedCaseQuotedIdentifiers() { |
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312 return false; |
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313 } |
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314 |
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315 /** |
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316 * What is the string used to quote SQL identifiers? |
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317 * This returns a space if identifier quoting isn't supported. |
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318 * A JDBC Compliant <sup>TM</sup> driver |
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319 * will always use a double quote character. |
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320 * |
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321 * @return the quoting string |
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322 */ |
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323 @Override |
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324 public String getIdentifierQuoteString() { |
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325 return "\""; |
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326 } |
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327 |
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328 /** |
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329 * Get a comma separated list of all a database's SQL keywords that |
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330 * are NOT also SQL:2003 keywords. |
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331 * |
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332 * @return a comma separated list of MonetDB keywords |
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333 */ |
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334 @Override |
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335 public String getSQLKeywords() { |
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336 final String keywords = getConcatenatedStringFromQuery("SELECT \"keyword\" FROM \"sys\".\"keywords\" ORDER BY 1"); |
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337 |
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338 /* An old MonetDB server (pre Jul2015 release) will not have a table sys.keywords and return an empty String */ |
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339 return (keywords.isEmpty()) ? |
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340 /* for old servers return static list (as returned in clients/odbc/driver/SQLGetInfo.c case SQL_KEYWORDS:) */ |
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341 "ADMIN,AFTER,AGGREGATE,ALWAYS,ASYMMETRIC,ATOMIC," + |
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342 "AUTO_INCREMENT,BEFORE,BIGINT,BIGSERIAL,BINARY,BLOB," + |
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343 "CALL,CHAIN,CLOB,COMMITTED,COPY,CORR,CUME_DIST," + |
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344 "CURRENT_ROLE,CYCLE,DATABASE,DELIMITERS,DENSE_RANK," + |
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345 "DO,EACH,ELSEIF,ENCRYPTED,EVERY,EXCLUDE,FOLLOWING," + |
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346 "FUNCTION,GENERATED,IF,ILIKE,INCREMENT,LAG,LEAD," + |
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347 "LIMIT,LOCALTIME,LOCALTIMESTAMP,LOCKED,MAXVALUE," + |
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348 "MEDIAN,MEDIUMINT,MERGE,MINVALUE,NEW,NOCYCLE," + |
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349 "NOMAXVALUE,NOMINVALUE,NOW,OFFSET,OLD,OTHERS,OVER," + |
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350 "PARTITION,PERCENT_RANK,PLAN,PRECEDING,PROD,QUANTILE," + |
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351 "RANGE,RANK,RECORDS,REFERENCING,REMOTE,RENAME," + |
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352 "REPEATABLE,REPLICA,RESTART,RETURN,RETURNS," + |
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353 "ROW_NUMBER,ROWS,SAMPLE,SAVEPOINT,SCHEMA,SEQUENCE," + |
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354 "SERIAL,SERIALIZABLE,SIMPLE,START,STATEMENT,STDIN," + |
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355 "STDOUT,STREAM,STRING,SYMMETRIC,TIES,TINYINT,TRIGGER," + |
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356 "UNBOUNDED,UNCOMMITTED,UNENCRYPTED,WHILE,XMLAGG," + |
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357 "XMLATTRIBUTES,XMLCOMMENT,XMLCONCAT,XMLDOCUMENT," + |
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358 "XMLELEMENT,XMLFOREST,XMLNAMESPACES,XMLPARSE,XMLPI," + |
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359 "XMLQUERY,XMLSCHEMA,XMLTEXT,XMLVALIDATE" |
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360 : keywords; |
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361 } |
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362 |
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363 /** |
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364 * Internal utility method getConcatenatedStringFromQuery(String query) |
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365 * args: query: SQL SELECT query. Only the output of the first column is concatenated. |
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366 * @return a String of query result values concatenated into one string, and values separated by comma's |
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367 */ |
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368 private String getConcatenatedStringFromQuery(final String query) { |
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369 final StringBuilder sb = new StringBuilder(1024); |
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370 Statement st = null; |
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371 ResultSet rs = null; |
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372 try { |
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373 st = con.createStatement(); |
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374 rs = st.executeQuery(query); |
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375 // Fetch the first column output and concatenate the values into a StringBuilder separated by comma's |
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376 boolean isfirst = true; |
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377 while (rs.next()) { |
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378 String value = rs.getString(1); |
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379 if (value != null) { |
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380 if (isfirst) { |
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381 isfirst = false; |
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382 } else { |
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383 sb.append(','); |
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384 } |
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385 sb.append(value); |
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386 } |
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387 } |
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388 } catch (SQLException e) { |
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389 /* ignore */ |
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390 } finally { |
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300
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391 MonetConnection.closeResultsetStatement(rs, st); |
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392 } |
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331
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393 // for debug: System.out.println("SQL (len " + query.length() + "): " + query + "\nResult string: " + sb.toString()); |
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394 return sb.toString(); |
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395 } |
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396 |
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397 // SQL query parts shared by four get<Type>Functions() below |
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398 private static final String FunctionsSelect = "SELECT DISTINCT CASE WHEN \"language\" > 0 THEN s.\"name\"||'.'||f.\"name\" ELSE f.\"name\" END FROM \"sys\".\"functions\" f JOIN \"sys\".\"schemas\" s ON f.\"schema_id\" = s.\"id\" WHERE "; |
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399 private static final String FunctionsWhere = "(f.\"id\" IN (SELECT \"func_id\" FROM \"sys\".\"args\" WHERE \"number\" = 1 AND \"name\" = 'arg_1' AND \"type\" IN "; |
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400 // Scalar functions sql_max(x,y), sql_min(x,y), greatest(x,y) and least(x,y) are defined in sys.args for type 'any' and usable as num, str and timedate functions. |
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401 private static final String OrFunctionsMaxMin = " OR f.\"name\" IN ('sql_max','sql_min','least','greatest')"; |
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402 private static final String FunctionsOrderBy1 = " ORDER BY 1"; |
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403 |
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404 @Override |
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405 public String getNumericFunctions() { |
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406 final String match = |
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407 "('tinyint','smallint','int','bigint','hugeint','decimal','double','real'))" + |
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338
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408 " AND \"type\" = 1" + // only scalar functions |
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409 // exclude functions which do not work or belong to string functions (code(int) and space(int)) |
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410 " AND f.\"name\" NOT IN ('code','not_uniques','rotate_xor_hash','space'))" + |
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411 // include specific functions which have no arguments (pi()) or are numeric. Actually ms_str is a conversion function from float to str. |
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412 " OR f.\"name\" IN ('alpha','degrees','fuse','ms_round','ms_str','ms_trunc','pi','radians')"; |
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413 return getConcatenatedStringFromQuery(FunctionsSelect + FunctionsWhere + match + OrFunctionsMaxMin + FunctionsOrderBy1); |
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414 } |
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415 |
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416 @Override |
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417 public String getStringFunctions() { |
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418 final String match = |
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419 "('char','varchar','clob','json','url'))" + |
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420 " AND \"type\" = 1" + // only scalar functions |
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421 // exclude sql functions: get_value_for, next_value_for, restart |
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422 " AND \"mod\" <> 'sql')" + |
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423 // include specific functions code(int) and space(int) which belong to the 'str' module |
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424 " OR \"mod\" = 'str'" + |
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425 // include 3 specific json functions, md5(), ms_stuff() and udf reverse() which all accept a string arg |
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426 " OR f.\"name\" IN ('isarray','isobject','isvalid','md5','ms_stuff','reverse')"; |
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427 final String unionPart = |
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428 // add functions which are not listed in sys.functions but implemented in the SQL parser (see sql/server/sql_parser.y) |
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268
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429 " UNION SELECT 'position'"; |
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430 return getConcatenatedStringFromQuery(FunctionsSelect + FunctionsWhere + match + OrFunctionsMaxMin + unionPart + FunctionsOrderBy1); |
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431 } |
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432 |
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433 @Override |
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434 public String getSystemFunctions() { |
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435 final String wherePart = |
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436 "f.\"name\" IN ('columnsize','debug','get_value_for','hash','hashsize','heapsize'" + |
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437 ",'ifthenelse','imprintsize','isaurl','isauuid','isnull','masterclock','mastertick'" + |
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363
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Remove support for deprecated MD5 encryption algorithm in MapiSocket.
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438 ",'newurl','next_value_for','password_hash','replicaclock','replicatick','uuid')" + |
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439 // add functions which are not listed in sys.functions but implemented in the SQL parser (see sql/server/sql_parser.y) |
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440 " UNION ALL SELECT * FROM (VALUES('cast'),('coalesce'),('convert'),('nullif')) as sf"; |
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441 return getConcatenatedStringFromQuery(FunctionsSelect + wherePart + FunctionsOrderBy1); |
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442 } |
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443 |
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444 @Override |
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445 public String getTimeDateFunctions() { |
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446 final String wherePart = |
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447 "\"mod\" IN ('mtime','timestamp')" + |
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448 // include Date/Time functions which are located in 'str' module |
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449 " OR f.\"name\" IN ('localtime','localtimestamp','date_trunc')"; |
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450 final String unionPart = |
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451 // add time date functions which are not listed in sys.functions but implemented in the SQL parser (see sql/server/sql_parser.y) |
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452 " UNION SELECT 'extract'" + |
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453 " UNION SELECT 'now'"; |
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454 return getConcatenatedStringFromQuery(FunctionsSelect + wherePart + OrFunctionsMaxMin + unionPart + FunctionsOrderBy1); |
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455 } |
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456 |
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457 /** |
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458 * This is the string that can be used to escape '_' and '%' in |
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459 * a search string pattern style catalog search parameters |
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460 * |
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461 * @return the string used to escape wildcard characters |
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462 */ |
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463 @Override |
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464 public String getSearchStringEscape() { |
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465 return "\\"; |
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466 } |
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467 |
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468 /** |
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469 * Get all the "extra" characters that can be used in unquoted |
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470 * identifier names (those beyond a-zA-Z0-9 and _) |
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471 * |
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472 * @return a string containing the extra characters |
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473 */ |
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474 @Override |
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475 public String getExtraNameCharacters() { |
|
194
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476 // MonetDB has no extra characters. Verified it for chars: !@#$%^&*()~{}[]? |
|
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477 return ""; |
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478 } |
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479 |
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480 /** |
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481 * Is "ALTER TABLE" with an add column supported? |
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482 * |
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483 * @return true if so |
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484 */ |
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485 @Override |
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486 public boolean supportsAlterTableWithAddColumn() { |
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487 return true; |
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488 } |
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489 |
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490 /** |
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491 * Is "ALTER TABLE" with a drop column supported? |
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492 * |
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493 * @return true if so |
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494 */ |
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495 @Override |
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496 public boolean supportsAlterTableWithDropColumn() { |
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497 return true; |
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498 } |
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499 |
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500 /** |
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501 * Is column aliasing supported? |
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502 * |
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503 * <p>If so, the SQL AS clause can be used to provide names for |
|
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504 * computed columns or to provide alias names for columns as required. |
|
231
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505 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
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506 * |
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507 * <p>e.g. |
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508 * |
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509 * <br><pre> |
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510 * select count(C) as C_COUNT from T group by C; |
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511 * |
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512 * </pre><br> |
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513 * should return a column named as C_COUNT instead of count(C) |
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514 * |
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515 * @return true if so |
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516 */ |
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517 @Override |
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518 public boolean supportsColumnAliasing() { |
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519 return true; |
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520 } |
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521 |
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522 /** |
|
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523 * Are concatenations between NULL and non-NULL values NULL? |
|
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524 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
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525 * |
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526 * @return true if so |
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527 */ |
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528 @Override |
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529 public boolean nullPlusNonNullIsNull() { |
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530 return true; |
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531 } |
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532 |
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533 /** |
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534 * Retrieves whether this database supports the JDBC scalar function |
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535 * CONVERT for the conversion of one JDBC type to another. |
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536 * The JDBC types are the generic SQL data types defined in java.sql.Types. |
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537 * |
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538 * @return true if so; false otherwise |
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539 */ |
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|
540 @Override |
|
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|
541 public boolean supportsConvert() { |
|
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542 return true; |
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543 } |
|
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544 |
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|
545 /** |
|
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546 * Retrieves whether this database supports the JDBC scalar function |
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Copy of MonetDB java directory changeset e6e32756ad31.
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547 * CONVERT for conversions between the JDBC types fromType and toType. |
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548 * The JDBC types are the generic SQL data types defined in java.sql.Types. |
|
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549 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
550 * @return true if so; false otherwise |
|
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|
551 */ |
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|
552 @Override |
|
295
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
553 public boolean supportsConvert(final int fromType, final int toType) { |
|
0
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|
554 switch (fromType) { |
|
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parents:
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changeset
|
555 case Types.BOOLEAN: |
|
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|
556 switch (toType) { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
557 case Types.BOOLEAN: |
|
a5a898f6886c
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changeset
|
558 /* case Types.BIT: is not supported by MonetDB and will fail */ |
|
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|
559 case Types.TINYINT: |
|
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changeset
|
560 case Types.SMALLINT: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
561 case Types.INTEGER: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
562 case Types.BIGINT: |
|
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parents:
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|
563 /* conversion to FLOAT, REAL, DOUBLE, NUMERIC and DECIMAL is not supported by MonetDB */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
564 case Types.CHAR: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
565 case Types.VARCHAR: |
|
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parents:
diff
changeset
|
566 /* case Types.LONGVARCHAR: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
567 case Types.CLOB: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
568 return true; |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
569 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
570 // conversion to all other types is not supported |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
571 return false; |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
572 /* case Types.BIT: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
573 /* case Types.BINARY: is not supported by MonetDB and will fail */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
574 /* case Types.VARBINARY: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
575 /* case Types.LONGVARBINARY: is not supported by MonetDB and will fail */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
576 case Types.BLOB: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
577 switch (toType) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
578 /* case Types.BINARY: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
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changeset
|
579 /* case Types.VARBINARY: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
580 /* case Types.LONGVARBINARY: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
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parents:
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changeset
|
581 case Types.BLOB: |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
582 case Types.VARCHAR: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
583 /* case Types.LONGVARCHAR: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
584 case Types.CLOB: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
585 return true; |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
586 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
587 // conversion to all other types is not supported |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
588 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
589 case Types.TINYINT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
590 case Types.SMALLINT: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
591 case Types.INTEGER: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
592 case Types.BIGINT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
593 case Types.FLOAT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
594 case Types.REAL: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
595 case Types.DOUBLE: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
596 case Types.NUMERIC: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
597 case Types.DECIMAL: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
598 switch (toType) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
599 case Types.BOOLEAN: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
600 /* case Types.BIT: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
601 case Types.TINYINT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
602 case Types.SMALLINT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
603 case Types.INTEGER: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
604 case Types.BIGINT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
605 case Types.FLOAT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
606 case Types.REAL: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
607 case Types.DOUBLE: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
608 case Types.NUMERIC: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
609 case Types.DECIMAL: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
610 case Types.CHAR: |
|
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parents:
diff
changeset
|
611 case Types.VARCHAR: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
612 /* case Types.LONGVARCHAR: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
613 case Types.CLOB: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
614 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
615 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
616 // conversion to all other types is not supported |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
617 return false; |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
618 case Types.CHAR: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
619 case Types.VARCHAR: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
620 /* case Types.LONGVARCHAR: is not supported by MonetDB and will fail */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
621 case Types.CLOB: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
622 switch (toType) { |
|
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changeset
|
623 case Types.BOOLEAN: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
624 /* case Types.BIT: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
625 case Types.TINYINT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
626 case Types.SMALLINT: |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
627 case Types.INTEGER: |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
628 case Types.BIGINT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
629 case Types.FLOAT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
630 case Types.REAL: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
631 case Types.DOUBLE: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
632 case Types.NUMERIC: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
633 case Types.DECIMAL: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
634 case Types.CHAR: |
|
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parents:
diff
changeset
|
635 case Types.VARCHAR: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
636 /* case Types.LONGVARCHAR: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
637 case Types.CLOB: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
638 case Types.BLOB: |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
639 case Types.DATE: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
640 case Types.TIME: |
|
380
bf521f343172
Added support for new Java 8 java.sql.Types: Types.TIME_WITH_TIMEZONE and Types.TIMESTAMP_WITH_TIMEZONE.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
379
diff
changeset
|
641 case Types.TIME_WITH_TIMEZONE: |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
642 case Types.TIMESTAMP: |
|
380
bf521f343172
Added support for new Java 8 java.sql.Types: Types.TIME_WITH_TIMEZONE and Types.TIMESTAMP_WITH_TIMEZONE.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
379
diff
changeset
|
643 case Types.TIMESTAMP_WITH_TIMEZONE: |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
644 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
645 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
646 // conversion to all other types is not supported |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
647 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
648 case Types.DATE: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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649 switch (toType) { |
|
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parents:
diff
changeset
|
650 case Types.CHAR: |
|
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|
651 case Types.VARCHAR: |
|
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parents:
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|
652 /* case Types.LONGVARCHAR: is not supported by MonetDB and will fail */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
653 case Types.CLOB: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
654 case Types.DATE: |
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parents:
diff
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|
655 case Types.TIMESTAMP: |
|
380
bf521f343172
Added support for new Java 8 java.sql.Types: Types.TIME_WITH_TIMEZONE and Types.TIMESTAMP_WITH_TIMEZONE.
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|
656 case Types.TIMESTAMP_WITH_TIMEZONE: |
|
0
a5a898f6886c
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657 return true; |
|
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parents:
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658 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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659 // conversion to all other types is not supported |
|
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|
660 return false; |
|
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|
661 case Types.TIME: |
|
380
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
662 case Types.TIME_WITH_TIMEZONE: |
|
0
a5a898f6886c
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|
663 switch (toType) { |
|
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|
664 case Types.CHAR: |
|
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665 case Types.VARCHAR: |
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|
666 /* case Types.LONGVARCHAR: is not supported by MonetDB and will fail */ |
|
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|
667 case Types.CLOB: |
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|
668 case Types.TIME: |
|
380
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|
669 case Types.TIME_WITH_TIMEZONE: |
|
0
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670 return true; |
|
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|
671 } |
|
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|
672 // conversion to all other types is not supported |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
673 return false; |
|
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|
674 case Types.TIMESTAMP: |
|
380
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
675 case Types.TIMESTAMP_WITH_TIMEZONE: |
|
0
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|
676 switch (toType) { |
|
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|
677 case Types.CHAR: |
|
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|
678 case Types.VARCHAR: |
|
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|
679 /* case Types.LONGVARCHAR: is not supported by MonetDB and will fail */ |
|
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changeset
|
680 case Types.CLOB: |
|
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|
681 case Types.DATE: |
|
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|
682 case Types.TIME: |
|
380
bf521f343172
Added support for new Java 8 java.sql.Types: Types.TIME_WITH_TIMEZONE and Types.TIMESTAMP_WITH_TIMEZONE.
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parents:
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|
683 case Types.TIME_WITH_TIMEZONE: |
|
0
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changeset
|
684 case Types.TIMESTAMP: |
|
380
bf521f343172
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diff
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|
685 case Types.TIMESTAMP_WITH_TIMEZONE: |
|
0
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|
686 return true; |
|
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changeset
|
687 } |
|
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|
688 // conversion to all other types is not supported |
|
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|
689 return false; |
|
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|
690 } |
|
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|
691 |
|
a5a898f6886c
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changeset
|
692 // conversion from all other JDBC SQL types are not supported |
|
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|
693 return false; |
|
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|
694 } |
|
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|
695 |
|
a5a898f6886c
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|
696 /** |
|
213
115f6351bf4b
Update some documentation text
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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200
diff
changeset
|
697 * Are table correlation names supported? |
|
231
68b9452f1215
Fix warnings:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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222
diff
changeset
|
698 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
a5a898f6886c
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|
699 * |
|
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|
700 * @return true if so |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
701 */ |
|
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parents:
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|
702 @Override |
|
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diff
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|
703 public boolean supportsTableCorrelationNames() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
704 return true; |
|
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changeset
|
705 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
706 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
707 /** |
|
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parents:
diff
changeset
|
708 * If table correlation names are supported, are they restricted to |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
709 * be different from the names of the tables? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
710 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
711 * @return true if so; false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
712 */ |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
713 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
714 public boolean supportsDifferentTableCorrelationNames() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
715 return false; |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
716 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
717 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
718 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
719 * Are expressions in "ORDER BY" lists supported? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
720 * e.g. select * from t order by a + b; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
721 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
722 * MonetDB supports this, try: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
723 * select (radix * 1000) + digits as comp, * from types order by (radix * 1000) + digits, -id; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
724 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
725 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
726 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
727 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
728 public boolean supportsExpressionsInOrderBy() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
729 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
730 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
731 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
732 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
733 * Can an "ORDER BY" clause use columns not in the SELECT? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
734 * MonetDB differs from SQL03 => true |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
735 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
736 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
737 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
738 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
739 public boolean supportsOrderByUnrelated() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
740 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
741 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
742 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
743 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
744 * Is some form of "GROUP BY" clause supported? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
745 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
746 * @return true since MonetDB supports it |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
747 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
748 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
749 public boolean supportsGroupBy() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
750 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
751 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
752 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
753 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
754 * Can a "GROUP BY" clause use columns not in the SELECT? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
755 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
756 * @return true since that also is supported |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
757 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
758 @Override |
|
a5a898f6886c
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|
759 public boolean supportsGroupByUnrelated() { |
|
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760 return true; |
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761 } |
|
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|
762 |
|
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|
763 /** |
|
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|
764 * Can a "GROUP BY" clause add columns not in the SELECT provided |
|
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|
765 * it specifies all the columns in the SELECT? |
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766 * |
|
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767 * (MonetDB already supports the more difficult supportsGroupByUnrelated(), |
|
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768 * so this is a piece of cake) |
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769 * |
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770 * @return true if so |
|
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|
771 */ |
|
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|
772 @Override |
|
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|
773 public boolean supportsGroupByBeyondSelect() { |
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774 return true; |
|
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775 } |
|
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|
776 |
|
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|
777 /** |
|
213
115f6351bf4b
Update some documentation text
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778 * Is the escape character in "LIKE" clauses supported? |
|
231
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779 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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780 * |
|
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781 * @return true if so |
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|
782 */ |
|
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|
783 @Override |
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784 public boolean supportsLikeEscapeClause() { |
|
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785 return true; |
|
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786 } |
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|
787 |
|
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|
788 /** |
|
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|
789 * Are multiple ResultSets from a single execute supported? |
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790 * |
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|
791 * @return true if so |
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792 */ |
|
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|
793 @Override |
|
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794 public boolean supportsMultipleResultSets() { |
|
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795 return true; |
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796 } |
|
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797 |
|
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|
798 /** |
|
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|
799 * Can we have multiple transactions open at once (on different |
|
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|
800 * connections?) |
|
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|
801 * This is the main idea behind the Connection, is it? |
|
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802 * |
|
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|
803 * @return true if so |
|
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|
804 */ |
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|
805 @Override |
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|
806 public boolean supportsMultipleTransactions() { |
|
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|
807 return true; |
|
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|
808 } |
|
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changeset
|
809 |
|
a5a898f6886c
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|
810 /** |
|
213
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811 * Can columns be defined as non-nullable. |
|
231
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812 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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|
813 * |
|
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|
814 * @return true if so |
|
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changeset
|
815 */ |
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|
816 @Override |
|
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|
817 public boolean supportsNonNullableColumns() { |
|
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|
818 return true; |
|
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819 } |
|
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|
820 |
|
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|
821 /** |
|
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|
822 * Does this driver support the minimum ODBC SQL grammar. This |
|
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|
823 * grammar is defined at: |
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824 * |
|
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825 * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/odbc/htm/odappcpr.asp |
|
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|
826 * From this description, we seem to support the ODBC minimal (Level 0) grammar. |
|
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827 * |
|
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828 * @return true if so |
|
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829 */ |
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830 @Override |
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|
831 public boolean supportsMinimumSQLGrammar() { |
|
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|
832 return true; |
|
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|
833 } |
|
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|
834 |
|
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|
835 /** |
|
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|
836 * Does this driver support the Core ODBC SQL grammar. We need |
|
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|
837 * SQL-92 conformance for this. |
|
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838 * |
|
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|
839 * @return true if so |
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|
840 */ |
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|
841 @Override |
|
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|
842 public boolean supportsCoreSQLGrammar() { |
|
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|
843 return true; |
|
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|
844 } |
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|
845 |
|
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|
846 /** |
|
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|
847 * Does this driver support the Extended (Level 2) ODBC SQL |
|
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changeset
|
848 * grammar. We don't conform to the Core (Level 1), so we can't |
|
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|
849 * conform to the Extended SQL Grammar. |
|
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850 * |
|
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|
851 * @return true if so |
|
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|
852 */ |
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|
853 @Override |
|
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|
854 public boolean supportsExtendedSQLGrammar() { |
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855 return false; |
|
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|
856 } |
|
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|
857 |
|
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|
858 /** |
|
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changeset
|
859 * Does this driver support the ANSI-92 entry level SQL grammar? |
|
231
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|
860 * All JDBC Compliant <sup>TM</sup> drivers must return true. |
|
0
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|
861 * |
|
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|
862 * @return true if so |
|
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|
863 */ |
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|
864 @Override |
|
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|
865 public boolean supportsANSI92EntryLevelSQL() { |
|
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|
866 return true; |
|
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|
867 } |
|
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|
868 |
|
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changeset
|
869 /** |
|
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|
870 * Does this driver support the ANSI-92 intermediate level SQL |
|
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|
871 * grammar? |
|
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|
872 * probably not |
|
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|
873 * |
|
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874 * @return true if so |
|
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875 */ |
|
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|
876 @Override |
|
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|
877 public boolean supportsANSI92IntermediateSQL() { |
|
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|
878 return false; |
|
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|
879 } |
|
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|
880 |
|
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|
881 /** |
|
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|
882 * Does this driver support the ANSI-92 full SQL grammar? |
|
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|
883 * Would be good if it was like that |
|
a5a898f6886c
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|
884 * |
|
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|
885 * @return true if so |
|
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|
886 */ |
|
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|
887 @Override |
|
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|
888 public boolean supportsANSI92FullSQL() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
889 return false; |
|
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|
890 } |
|
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|
891 |
|
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|
892 /** |
|
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|
893 * Is the SQL Integrity Enhancement Facility supported? |
|
267
43ea6c50483e
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|
894 * |
|
43ea6c50483e
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265
diff
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|
895 * The SQL Integrity Enhancement facility offers additional tools for referential integrity, |
|
43ea6c50483e
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|
896 * CHECK constraint clauses, and DEFAULT clauses. Referential integrity allows specification of |
|
43ea6c50483e
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|
897 * primary and foreign keys with the requirement that no foreign key row may be inserted or |
|
43ea6c50483e
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|
898 * updated unless a matching primary key row exists. Check clauses allow specification of |
|
43ea6c50483e
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265
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|
899 * inter-column constraints to be maintained by the database system. |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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|
900 * Default clauses provide optional default values for missing data. |
|
267
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|
901 * |
|
43ea6c50483e
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|
902 * We currently do not supprt CHECK constraints (see bug 3568) nor deferrable FK constraints. |
|
0
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|
903 * |
|
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|
904 * @return true if so |
|
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|
905 */ |
|
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|
906 @Override |
|
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|
907 public boolean supportsIntegrityEnhancementFacility() { |
|
267
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|
908 return false; |
|
0
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|
909 } |
|
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changeset
|
910 |
|
a5a898f6886c
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|
911 /** |
|
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|
912 * Is some form of outer join supported? |
|
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|
913 * |
|
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|
914 * @return true if so |
|
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|
915 */ |
|
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|
916 @Override |
|
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|
917 public boolean supportsOuterJoins(){ |
|
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changeset
|
918 return true; |
|
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|
919 } |
|
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|
920 |
|
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|
921 /** |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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7
diff
changeset
|
922 * Are full nested outer joins supported? |
|
0
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|
923 * |
|
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|
924 * @return true if so |
|
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|
925 */ |
|
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|
926 @Override |
|
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|
927 public boolean supportsFullOuterJoins() { |
|
a5a898f6886c
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|
928 return true; |
|
a5a898f6886c
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changeset
|
929 } |
|
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changeset
|
930 |
|
a5a898f6886c
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changeset
|
931 /** |
|
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|
932 * Is there limited support for outer joins? |
|
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parents:
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changeset
|
933 * |
|
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changeset
|
934 * @return true if so |
|
a5a898f6886c
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|
935 */ |
|
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changeset
|
936 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
937 public boolean supportsLimitedOuterJoins() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
938 return false; |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
939 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
940 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
941 /** |
|
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|
942 * What is the database vendor's preferred term for "schema"? |
|
a5a898f6886c
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diff
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|
943 * MonetDB uses the term "schema". |
|
a5a898f6886c
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parents:
diff
changeset
|
944 * |
|
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|
945 * @return the vendor term |
|
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parents:
diff
changeset
|
946 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
947 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
948 public String getSchemaTerm() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
949 return "schema"; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
950 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
951 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
952 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
953 * What is the database vendor's preferred term for "procedure"? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
954 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
955 * @return the vendor term |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
956 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
957 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
958 public String getProcedureTerm() { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
959 return "procedure"; |
|
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changeset
|
960 } |
|
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changeset
|
961 |
|
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diff
changeset
|
962 /** |
|
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diff
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|
963 * What is the database vendor's preferred term for "catalog"? |
|
356
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
352
diff
changeset
|
964 * |
|
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
352
diff
changeset
|
965 * MonetDB doesn't support the SQL catalog naming concept. |
|
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
352
diff
changeset
|
966 * Only SQL schemas are supported. |
|
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
352
diff
changeset
|
967 * We also do not allow the name of a database to be included in |
|
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
352
diff
changeset
|
968 * a fully qualified name, so we shouldn't return "database" here. |
|
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
352
diff
changeset
|
969 * A database is a different concept than an SQL catalog. |
|
0
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changeset
|
970 * |
|
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diff
changeset
|
971 * @return the vendor term |
|
a5a898f6886c
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diff
changeset
|
972 */ |
|
a5a898f6886c
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changeset
|
973 @Override |
|
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changeset
|
974 public String getCatalogTerm() { |
|
356
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
352
diff
changeset
|
975 // MonetDB does NOT support catalogs, so also no catalog term |
|
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
352
diff
changeset
|
976 // Some generic SQL clients (e.g. DbVisualiser) use this string in their GUI |
|
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
352
diff
changeset
|
977 // To avoid NPE, just return an abrev string: "cat" (we like cats) |
|
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
352
diff
changeset
|
978 return "cat"; |
|
0
a5a898f6886c
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diff
changeset
|
979 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
980 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
981 /** |
|
a5a898f6886c
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parents:
diff
changeset
|
982 * Does a catalog appear at the start of a qualified table name? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
983 * (Otherwise it appears at the end). |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
984 * Currently there is no catalog support at all in MonetDB |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
985 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
986 * @return true if so |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
987 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
988 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
989 public boolean isCatalogAtStart() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
990 // return true here; we return false for every other catalog function |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
991 // so it won't matter what we return here |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
992 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
993 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
994 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
995 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
996 * What is the Catalog separator. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
997 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
998 * @return the catalog separator string |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
999 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1000 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1001 public String getCatalogSeparator() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1002 // MonetDB does NOT support catalogs, so also no catalog separator |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1003 return null; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1004 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1005 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1006 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1007 * Can a schema name be used in a data manipulation statement? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1008 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1009 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1010 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1011 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1012 public boolean supportsSchemasInDataManipulation() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1013 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1014 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1015 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1016 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1017 * Can a schema name be used in a procedure call statement? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1018 * Ohw probably, but I don't know of procedures in MonetDB |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1019 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1020 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1021 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1022 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1023 public boolean supportsSchemasInProcedureCalls() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1024 return true; |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1025 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1026 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1027 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1028 * Can a schema be used in a table definition statement? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1029 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1030 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1031 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1032 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1033 public boolean supportsSchemasInTableDefinitions() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1034 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1035 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1036 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1037 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1038 * Can a schema name be used in an index definition statement? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1039 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1040 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1041 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1042 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1043 public boolean supportsSchemasInIndexDefinitions() { |
|
294
894abb249de1
Corrected 3 MonetDatabaseMetaData methods
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
286
diff
changeset
|
1044 // we currently do NOT support: create index sch.tblidx on sch.tbl(col); |
|
894abb249de1
Corrected 3 MonetDatabaseMetaData methods
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
286
diff
changeset
|
1045 // only: create index tblidx on sch.tbl(col); |
|
894abb249de1
Corrected 3 MonetDatabaseMetaData methods
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
286
diff
changeset
|
1046 return false; |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1047 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1048 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1049 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1050 * Can a schema name be used in a privilege definition statement? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1051 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1052 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1053 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1054 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1055 public boolean supportsSchemasInPrivilegeDefinitions() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1056 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1057 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1058 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1059 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1060 * Can a catalog name be used in a data manipulation statement? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1061 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1062 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1063 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1064 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1065 public boolean supportsCatalogsInDataManipulation() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1066 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1067 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1068 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1069 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1070 * Can a catalog name be used in a procedure call statement? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1071 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1072 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1073 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1074 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1075 public boolean supportsCatalogsInProcedureCalls() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1076 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1077 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1078 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1079 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1080 * Can a catalog name be used in a table definition statement? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1081 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1082 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1083 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1084 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1085 public boolean supportsCatalogsInTableDefinitions() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1086 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1087 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1088 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1089 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1090 * Can a catalog name be used in an index definition? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1091 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1092 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1093 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1094 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1095 public boolean supportsCatalogsInIndexDefinitions() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1096 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1097 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1098 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1099 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1100 * Can a catalog name be used in a privilege definition statement? |
|
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|
1101 * |
|
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|
1102 * @return true if so |
|
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|
1103 */ |
|
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|
1104 @Override |
|
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|
1105 public boolean supportsCatalogsInPrivilegeDefinitions() { |
|
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|
1106 return false; |
|
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|
1107 } |
|
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|
1108 |
|
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|
1109 /** |
|
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|
1110 * MonetDB doesn't support positioned DELETEs I guess |
|
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|
1111 * |
|
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|
1112 * @return true if so |
|
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|
1113 */ |
|
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|
1114 @Override |
|
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|
1115 public boolean supportsPositionedDelete() { |
|
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|
1116 return false; |
|
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Sjoerd Mullender <sjoerd@acm.org>
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|
1117 } |
|
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|
1118 |
|
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|
1119 /** |
|
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|
1120 * Is positioned UPDATE supported? (same as above) |
|
a5a898f6886c
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|
1121 * |
|
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|
1122 * @return true if so |
|
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|
1123 */ |
|
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|
1124 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
1125 public boolean supportsPositionedUpdate() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1126 return false; |
|
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Sjoerd Mullender <sjoerd@acm.org>
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|
1127 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1128 |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1129 /** |
|
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|
1130 * Is SELECT FOR UPDATE supported? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1131 * My test resulted in a negative answer |
|
a5a898f6886c
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|
1132 * |
|
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|
1133 * @return true if so; false otherwise |
|
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|
1134 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1135 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1136 public boolean supportsSelectForUpdate(){ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1137 return false; |
|
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Sjoerd Mullender <sjoerd@acm.org>
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|
1138 } |
|
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1139 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
1140 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
1141 * Are stored procedure calls using the stored procedure escape |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1142 * syntax supported? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1143 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1144 * @return true if so; false otherwise |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1145 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1146 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
1147 public boolean supportsStoredProcedures() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1148 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1149 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1150 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
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|
1151 /** |
|
213
115f6351bf4b
Update some documentation text
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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200
diff
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|
1152 * Are subqueries in comparison expressions supported? |
|
231
68b9452f1215
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
1153 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
213
115f6351bf4b
Update some documentation text
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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200
diff
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|
1154 * MonetDB also supports this |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1155 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1156 * @return true if so; false otherwise |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1157 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1158 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
1159 public boolean supportsSubqueriesInComparisons() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
1160 return true; |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1161 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1162 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1163 /** |
|
213
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Update some documentation text
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
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|
1164 * Are subqueries in 'exists' expressions supported? |
|
231
68b9452f1215
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diff
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|
1165 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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changeset
|
1166 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
1167 * @return true if so; false otherwise |
|
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changeset
|
1168 */ |
|
a5a898f6886c
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changeset
|
1169 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1170 public boolean supportsSubqueriesInExists() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
1171 return true; |
|
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1172 } |
|
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1173 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1174 /** |
|
213
115f6351bf4b
Update some documentation text
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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200
diff
changeset
|
1175 * Are subqueries in 'in' statements supported? |
|
231
68b9452f1215
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diff
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|
1176 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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changeset
|
1177 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1178 * @return true if so; false otherwise |
|
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changeset
|
1179 */ |
|
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changeset
|
1180 @Override |
|
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changeset
|
1181 public boolean supportsSubqueriesInIns() { |
|
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changeset
|
1182 return true; |
|
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|
1183 } |
|
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|
1184 |
|
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|
1185 /** |
|
213
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200
diff
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|
1186 * Are subqueries in quantified expressions supported? |
|
231
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|
1187 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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|
1188 * |
|
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changeset
|
1189 * (No idea what this is, but we support a good deal of |
|
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|
1190 * subquerying.) |
|
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|
1191 * |
|
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|
1192 * @return true if so; false otherwise |
|
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|
1193 */ |
|
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changeset
|
1194 @Override |
|
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|
1195 public boolean supportsSubqueriesInQuantifieds() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1196 return true; |
|
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|
1197 } |
|
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|
1198 |
|
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|
1199 /** |
|
213
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|
1200 * Are correlated subqueries supported? |
|
231
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|
1201 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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changeset
|
1202 * |
|
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|
1203 * (a.k.a. subselect in from?) |
|
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|
1204 * |
|
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|
1205 * @return true if so; false otherwise |
|
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|
1206 */ |
|
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changeset
|
1207 @Override |
|
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changeset
|
1208 public boolean supportsCorrelatedSubqueries() { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
1209 return true; |
|
a5a898f6886c
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changeset
|
1210 } |
|
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changeset
|
1211 |
|
a5a898f6886c
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changeset
|
1212 /** |
|
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|
1213 * Is SQL UNION supported? |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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|
1214 * since 2004-03-20 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1215 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1216 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1217 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1218 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1219 public boolean supportsUnion() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1220 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1221 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1222 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1223 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1224 * Is SQL UNION ALL supported? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1225 * since 2004-03-20 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1226 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1227 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1228 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1229 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1230 public boolean supportsUnionAll() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1231 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1232 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1233 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1234 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1235 * ResultSet objects (cursors) are not closed upon explicit or |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1236 * implicit commit. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1237 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1238 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1239 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1240 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1241 public boolean supportsOpenCursorsAcrossCommit() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1242 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1243 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1244 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1245 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1246 * Same as above |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1247 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1248 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1249 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1250 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1251 public boolean supportsOpenCursorsAcrossRollback() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1252 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1253 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1254 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1255 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1256 * Can statements remain open across commits? They may, but |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1257 * this driver cannot guarentee that. In further reflection. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1258 * we are taking a Statement object here, so the answer is |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1259 * yes, since the Statement is only a vehicle to execute some SQL |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1260 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1261 * @return true if they always remain open; false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1262 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1263 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1264 public boolean supportsOpenStatementsAcrossCommit() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1265 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1266 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1267 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1268 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1269 * Can statements remain open across rollbacks? They may, but |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1270 * this driver cannot guarentee that. In further contemplation, |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1271 * we are taking a Statement object here, so the answer is yes again. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1272 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1273 * @return true if they always remain open; false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1274 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1275 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1276 public boolean supportsOpenStatementsAcrossRollback() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1277 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1278 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1279 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1280 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1281 * How many hex characters can you have in an inline binary literal |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1282 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1283 * @return the max literal length |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1284 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1285 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1286 public int getMaxBinaryLiteralLength() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1287 return 2*1024*1024*1024 - 2; // MonetDB supports null terminated strings of max 2GB, see function: int UTF8_strlen() |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1288 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1289 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1290 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1291 * What is the maximum length for a character literal |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1292 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1293 * @return the max literal length |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1294 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1295 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1296 public int getMaxCharLiteralLength() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1297 return 2*1024*1024*1024 - 2; // MonetDB supports null terminated strings of max 2GB, see function: int UTF8_strlen() |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1298 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1299 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1300 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1301 * Whats the limit on column name length. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1302 * I take some safety here, but it's just a varchar in MonetDB |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1303 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1304 * @return the maximum column name length |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1305 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1306 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1307 public int getMaxColumnNameLength() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1308 return 1024; // In MonetDB the max length of column sys._columns.name is defined as 1024 |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1309 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1310 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1311 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1312 * What is the maximum number of columns in a "GROUP BY" clause? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1313 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1314 * @return the max number of columns |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1315 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1316 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1317 public int getMaxColumnsInGroupBy() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1318 return 0; // no specific limit known |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1319 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1320 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1321 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1322 * What's the maximum number of columns allowed in an index? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1323 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1324 * @return max number of columns |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1325 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1326 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1327 public int getMaxColumnsInIndex() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1328 return 0; // no specific limit known |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1329 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1330 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1331 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1332 * What's the maximum number of columns in an "ORDER BY clause? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1333 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1334 * @return the max columns |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1335 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1336 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1337 public int getMaxColumnsInOrderBy() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1338 return 0; // no specific limit known |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1339 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1340 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1341 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1342 * What is the maximum number of columns in a "SELECT" list? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1343 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1344 * @return the max columns |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1345 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1346 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1347 public int getMaxColumnsInSelect() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1348 return 0; // no specific limit known |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1349 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1350 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1351 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1352 * What is the maximum number of columns in a table? |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1353 * |
|
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1354 * The theoretical max value of int column sys._columns.id is 2^31 -1 |
|
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1355 * but this is for all columns of all tables in all schemas (including all data dictionary columns). |
|
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1356 * For one table we should reduce it to a more practical soft limit of say 100 thousand |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1357 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1358 * @return the max columns |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1359 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1360 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1361 public int getMaxColumnsInTable() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1362 return 100*1000; // soft limit it to 100 thousand |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1363 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1364 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1365 /** |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
1366 * Retrieves the maximum number of concurrent connections to this database that are possible. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
1367 * |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
1368 * @return the maximum number of active connections possible at one time; a result of zero means that there is no limit or the limit is not known |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1369 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1370 @Override |
|
7
b3ca1157be73
Improve DatabaseMetaData.getDatabaseProductVersion() to never return a null String.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
0
diff
changeset
|
1371 public int getMaxConnections() throws SQLException { |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
changeset
|
1372 return con.getMaxConnections(); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1373 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1374 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1375 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1376 * What is the maximum cursor name length |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1377 * Actually we do not do named cursors, so I keep the value small as |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1378 * a precaution for maybe the future. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1379 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1380 * @return max cursor name length in bytes |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1381 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1382 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1383 public int getMaxCursorNameLength() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1384 return 0; // no specific limit known |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1385 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1386 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1387 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1388 * Retrieves the maximum number of bytes for an index, including all |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1389 * of the parts of the index. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1390 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1391 * @return max index length in bytes, which includes the composite |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1392 * of all the constituent parts of the index; a result of zero |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1393 * means that there is no limit or the limit is not known |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1394 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1395 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1396 public int getMaxIndexLength() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1397 return 0; // no specific limit known |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1398 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1399 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
1400 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1401 * Retrieves the maximum number of characters that this database |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1402 * allows in a schema name. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1403 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1404 * @return the number of characters or 0 if there is no limit, or the |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1405 * limit is unknown. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
1406 */ |
|
a5a898f6886c
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parents:
diff
changeset
|
1407 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1408 public int getMaxSchemaNameLength() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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7
diff
changeset
|
1409 return 1024; // In MonetDB the max length of column sys.schemas.name is defined as 1024 |
|
0
a5a898f6886c
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parents:
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changeset
|
1410 } |
|
a5a898f6886c
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parents:
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changeset
|
1411 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
1412 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
1413 * What is the maximum length of a procedure name |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1414 * |
|
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parents:
diff
changeset
|
1415 * @return the max name length in bytes |
|
a5a898f6886c
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|
1416 */ |
|
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parents:
diff
changeset
|
1417 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1418 public int getMaxProcedureNameLength() { |
|
15
6e48d0fae766
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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changeset
|
1419 return 256; // In MonetDB the max length of column sys.functions.name is defined as 256 |
|
0
a5a898f6886c
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changeset
|
1420 } |
|
a5a898f6886c
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parents:
diff
changeset
|
1421 |
|
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parents:
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changeset
|
1422 /** |
|
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|
1423 * What is the maximum length of a catalog |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1424 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1425 * @return the maximum number of characters allowed in a catalog name; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1426 * a result of zero means that there is no limit or the limit is not known |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
1427 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1428 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1429 public int getMaxCatalogNameLength() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1430 return 0; // MonetDB does not support catalog names |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1431 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1432 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1433 /** |
|
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parents:
diff
changeset
|
1434 * What is the maximum length of a single row? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1435 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1436 * @return max row size in bytes |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1437 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1438 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1439 public int getMaxRowSize() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1440 return 0; // very long I hope... |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1441 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1442 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1443 /** |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1444 * Did getMaxRowSize() include the SQL data types LONGVARCHAR and LONGVARBINARY |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1445 * blobs? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1446 * Yes I thought so... |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1447 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1448 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1449 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1450 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1451 public boolean doesMaxRowSizeIncludeBlobs() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1452 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1453 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1454 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1455 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1456 * What is the maximum length of a SQL statement? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1457 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1458 * @return max length in bytes |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1459 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1460 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1461 public int getMaxStatementLength() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1462 return 2*1024*1024*1024 - 2; // MonetDB supports null terminated strings of max 2GB, see function: int UTF8_strlen() |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1463 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1464 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1465 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1466 * How many active statements can we have open at one time to |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1467 * this database? Basically, since each Statement downloads |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1468 * the results as the query is executed, we can have many. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1469 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1470 * @return the maximum |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1471 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1472 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1473 public int getMaxStatements() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1474 return 0; // no specific limit known |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1475 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1476 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1477 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1478 * What is the maximum length of a table name |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1479 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1480 * @return max name length in bytes |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1481 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1482 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1483 public int getMaxTableNameLength() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1484 return 1024; // In MonetDB the max length of column sys._tables.name is defined as 1024 |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1485 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1486 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1487 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1488 * What is the maximum number of tables that can be specified |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1489 * in a SELECT? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1490 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1491 * @return the maximum |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1492 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1493 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1494 public int getMaxTablesInSelect() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1495 return 0; // no specific limit known |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1496 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1497 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1498 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1499 * What is the maximum length of a user name |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1500 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1501 * @return the max name length in bytes |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1502 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1503 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1504 public int getMaxUserNameLength() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1505 return 1024; // In MonetDB the max length of column sys.db_user_info.name is defined as 1024 |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1506 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1507 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1508 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1509 * What is the database's default transaction isolation level? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1510 * We only see commited data, nonrepeatable reads and phantom |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1511 * reads can occur. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1512 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1513 * @return the default isolation level |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1514 * @see Connection |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1515 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1516 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1517 public int getDefaultTransactionIsolation() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1518 return Connection.TRANSACTION_SERIALIZABLE; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1519 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1520 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1521 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1522 * Are transactions supported? If not, commit and rollback are noops |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1523 * and the isolation level is TRANSACTION_NONE. We do support |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1524 * transactions. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1525 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1526 * @return true if transactions are supported |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1527 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1528 @Override |
|
a5a898f6886c
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parents:
diff
changeset
|
1529 public boolean supportsTransactions() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1530 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1531 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1532 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1533 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1534 * Does the database support the given transaction isolation level? |
|
213
115f6351bf4b
Update some documentation text
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
200
diff
changeset
|
1535 * We only support TRANSACTION_SERIALIZABLE as far as I know |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1536 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1537 * @param level the values are defined in java.sql.Connection |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1538 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1539 * @see Connection |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1540 */ |
|
a5a898f6886c
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parents:
diff
changeset
|
1541 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
1542 public boolean supportsTransactionIsolationLevel(final int level) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1543 return level == Connection.TRANSACTION_SERIALIZABLE; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1544 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1545 |
|
a5a898f6886c
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|
1546 /** |
|
a5a898f6886c
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changeset
|
1547 * Are both data definition and data manipulation transactions |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1548 * supported? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
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|
1549 * Supposedly that data definition is like CREATE or ALTER TABLE |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1550 * yes it is. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1551 * |
|
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|
1552 * @return true if so |
|
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|
1553 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1554 @Override |
|
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|
1555 public boolean supportsDataDefinitionAndDataManipulationTransactions() { |
|
a5a898f6886c
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|
1556 return true; |
|
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|
1557 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1558 |
|
a5a898f6886c
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|
1559 /** |
|
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|
1560 * Are only data manipulation statements within a transaction |
|
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|
1561 * supported? |
|
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|
1562 * |
|
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|
1563 * @return true if so |
|
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|
1564 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1565 @Override |
|
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|
1566 public boolean supportsDataManipulationTransactionsOnly() { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1567 return false; |
|
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|
1568 } |
|
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|
1569 |
|
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|
1570 /** |
|
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|
1571 * Does a data definition statement within a transaction force |
|
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|
1572 * the transaction to commit? I think this means something like: |
|
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|
1573 * |
|
194
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|
1574 * <pre> |
|
0
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|
1575 * CREATE TABLE T (A INT); |
|
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|
1576 * INSERT INTO T (A) VALUES (2); |
|
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|
1577 * BEGIN; |
|
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|
1578 * UPDATE T SET A = A + 1; |
|
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|
1579 * CREATE TABLE X (A INT); |
|
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|
1580 * SELECT A FROM T INTO X; |
|
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|
1581 * COMMIT; |
|
194
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|
1582 * </pre> |
|
0
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|
1583 * |
|
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|
1584 * does the CREATE TABLE call cause a commit? The answer is no. |
|
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|
1585 * |
|
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|
1586 * @return true if so |
|
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|
1587 */ |
|
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|
1588 @Override |
|
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|
1589 public boolean dataDefinitionCausesTransactionCommit() { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1590 return false; |
|
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|
1591 } |
|
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|
1592 |
|
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|
1593 /** |
|
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|
1594 * Is a data definition statement within a transaction ignored? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1595 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1596 * @return true if so |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1597 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1598 @Override |
|
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changeset
|
1599 public boolean dataDefinitionIgnoredInTransactions() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1600 return false; |
|
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|
1601 } |
|
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|
1602 |
|
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|
1603 /** |
|
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|
1604 * Get a description of stored procedures available in a catalog |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1605 * |
|
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|
1606 * <p>Only procedure descriptions matching the schema and procedure |
|
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|
1607 * name criteria are returned. They are ordered by PROCEDURE_SCHEM, |
|
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|
1608 * PROCEDURE_NAME and SPECIFIC_NAME. |
|
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|
1609 * |
|
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|
1610 * <p>Each procedure description has the following columns: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1611 * <ol> |
|
194
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|
1612 * <li><b>PROCEDURE_CAT</b> String => procedure catalog (may be null) |
|
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|
1613 * <li><b>PROCEDURE_SCHEM</b> String => procedure schema (may be null) |
|
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|
1614 * <li><b>PROCEDURE_NAME</b> String => procedure name |
|
0
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|
1615 * <li><b>Field4</b> reserved (make it null) |
|
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|
1616 * <li><b>Field5</b> reserved (make it null) |
|
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|
1617 * <li><b>Field6</b> reserved (make it null) |
|
194
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|
1618 * <li><b>REMARKS</b> String => explanatory comment on the procedure |
|
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|
1619 * <li><b>PROCEDURE_TYPE</b> short => kind of procedure |
|
0
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|
1620 * <ul> |
|
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|
1621 * <li> procedureResultUnknown - May return a result |
|
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|
1622 * <li> procedureNoResult - Does not return a result |
|
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|
1623 * <li> procedureReturnsResult - Returns a result |
|
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|
1624 * </ul> |
|
194
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|
1625 * <li><b>SPECIFIC_NAME</b> String => The name which uniquely identifies this procedure within its schema. |
|
0
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|
1626 * </ol> |
|
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|
1627 * |
|
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|
1628 * @param catalog - a catalog name; must match the catalog name as it is stored in the database; |
|
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|
1629 * "" retrieves those without a catalog; |
|
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|
1630 * null means that the catalog name should not be used to narrow the search |
|
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|
1631 * @param schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; |
|
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|
1632 * "" retrieves those without a schema; |
|
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|
1633 * null means that the schema name should not be used to narrow the search |
|
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|
1634 * @param procedureNamePattern - a procedure name pattern; must match the procedure name as it is stored in the database |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
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diff
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|
1635 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
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|
1636 * @return ResultSet - each row is a procedure description |
|
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|
1637 * @throws SQLException if a database access error occurs |
|
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|
1638 */ |
|
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|
1639 @Override |
|
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|
1640 public ResultSet getProcedures( |
|
295
003ae6d881db
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|
1641 final String catalog, |
|
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|
1642 final String schemaPattern, |
|
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|
1643 final String procedureNamePattern |
|
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|
1644 ) throws SQLException |
|
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|
1645 { |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
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|
1646 final boolean useCommentsTable = con.commentsTableExists(); |
|
295
003ae6d881db
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|
1647 final StringBuilder query = new StringBuilder(980); |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
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216
diff
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|
1648 query.append("SELECT cast(null as char(1)) AS \"PROCEDURE_CAT\", " + |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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diff
changeset
|
1649 "s.\"name\" AS \"PROCEDURE_SCHEM\", " + |
|
1b6c514106ce
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diff
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|
1650 "f.\"name\" AS \"PROCEDURE_NAME\", " + |
|
0
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changeset
|
1651 "cast(null as char(1)) AS \"Field4\", " + |
|
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|
1652 "cast(null as char(1)) AS \"Field5\", " + |
|
215
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Added support for querying the sys.comments table for some meta data methods
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|
1653 "cast(null as char(1)) AS \"Field6\", ") |
|
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|
1654 .append(useCommentsTable ? "COALESCE(cm.\"remark\", cast(f.\"func\" as varchar(9999)))" : "cast(f.\"func\" as varchar(9999))").append(" AS \"REMARKS\", " + |
|
0
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|
1655 // in MonetDB procedures have no return value by design. |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
1656 "cast(").append(DatabaseMetaData.procedureNoResult).append(" AS smallint) AS \"PROCEDURE_TYPE\", " + |
|
0
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|
1657 // only the id value uniquely identifies a procedure. Include it to be able to differentiate between multiple overloaded procedures with the same name |
|
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|
1658 "cast(f.\"id\" as varchar(10)) AS \"SPECIFIC_NAME\" " + |
|
352
f62137dd6050
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
1659 "FROM \"sys\".\"functions\" f JOIN \"sys\".\"schemas\" s ON f.\"schema_id\" = s.\"id\" "); |
|
215
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|
1660 if (useCommentsTable) { |
|
352
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|
1661 query.append("LEFT OUTER JOIN \"sys\".\"comments\" cm ON f.\"id\" = cm.\"id\" "); |
|
215
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|
1662 } |
|
0
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|
1663 // include procedures only (type = 2). Others will be returned via getFunctions() |
|
302
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|
1664 query.append("WHERE f.\"type\" = 2"); |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1665 |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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215
diff
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|
1666 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
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diff
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|
1667 // non-empty catalog selection. |
|
0
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|
1668 // as we do not support catalogs this always results in no rows returned |
|
352
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|
1669 query.append(" AND 1=0"); |
|
216
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|
1670 } else { |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
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|
1671 if (schemaPattern != null && !schemaPattern.equals("%")) { |
|
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|
1672 query.append(" AND s.\"name\" ").append(composeMatchPart(schemaPattern)); |
|
216
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|
1673 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
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|
1674 if (procedureNamePattern != null && !procedureNamePattern.equals("%")) { |
|
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|
1675 query.append(" AND f.\"name\" ").append(composeMatchPart(procedureNamePattern)); |
|
216
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|
1676 } |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
1677 } |
|
216
116b5a149fb4
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|
1678 |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1679 query.append(" ORDER BY \"PROCEDURE_SCHEM\", \"PROCEDURE_NAME\", \"SPECIFIC_NAME\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
1680 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1681 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1682 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
1683 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1684 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1685 * Get a description of a catalog's stored procedure parameters |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
1686 * and result columns. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
1687 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1688 * <p>Only descriptions matching the schema, procedure and parameter name |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1689 * criteria are returned. They are ordered by PROCEDURE_SCHEM, PROCEDURE_NAME |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1690 * and SPECIFIC_NAME. Within this, the return value, if any, is first. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1691 * Next are the parameter descriptions in call order. The |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1692 * column descriptions follow in column number order. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
1693 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1694 * <p>Each row in the ResultSet is a parameter description or column |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1695 * description with the following fields: |
|
a5a898f6886c
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parents:
diff
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|
1696 * <ol> |
|
194
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186
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|
1697 * <li><b>PROCEDURE_CAT</b> String => procedure catalog (may be null) |
|
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|
1698 * <li><b>PROCEDURE_SCHEM</b> String => procedure schema (may be null) |
|
1296dbcc4958
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186
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|
1699 * <li><b>PROCEDURE_NAME</b> String => procedure name |
|
1296dbcc4958
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186
diff
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|
1700 * <li><b>COLUMN_NAME</b> String => column/parameter name |
|
1296dbcc4958
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186
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|
1701 * <li><b>COLUMN_TYPE</b> Short => kind of column/parameter: |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1702 * <ul><li>procedureColumnUnknown - nobody knows |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1703 * <li>procedureColumnIn - IN parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1704 * <li>procedureColumnInOut - INOUT parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1705 * <li>procedureColumnOut - OUT parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1706 * <li>procedureColumnReturn - procedure return value |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1707 * <li>procedureColumnResult - result column in ResultSet |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
1708 * </ul> |
|
194
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186
diff
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|
1709 * <li><b>DATA_TYPE</b> int => SQL type from java.sql.Types |
|
1296dbcc4958
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186
diff
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|
1710 * <li><b>TYPE_NAME</b> String => SQL type name, for a UDT type the type name is fully qualified |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
diff
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|
1711 * <li><b>PRECISION</b> int => precision |
|
1296dbcc4958
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186
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|
1712 * <li><b>LENGTH</b> int => length in bytes of data |
|
1296dbcc4958
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|
1713 * <li><b>SCALE</b> short => scale - null is returned for data types where SCALE is not applicable. |
|
1296dbcc4958
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|
1714 * <li><b>RADIX</b> short => radix |
|
1296dbcc4958
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|
1715 * <li><b>NULLABLE</b> short => can it contain NULL? |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1716 * <ul><li>procedureNoNulls - does not allow NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1717 * <li>procedureNullable - allows NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
1718 * <li>procedureNullableUnknown - nullability unknown |
|
a5a898f6886c
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|
1719 * </ul> |
|
194
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|
1720 * <li><b>REMARKS</b> String => comment describing parameter/column |
|
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|
1721 * <li><b>COLUMN_DEF</b> String => default value for the column, which should be interpreted as a string when the value is enclosed in single quotes (may be null) |
|
0
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|
1722 * The string NULL (not enclosed in quotes) - if NULL was specified as the default value |
|
a5a898f6886c
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|
1723 * TRUNCATE (not enclosed in quotes) - if the specified default value cannot be represented without truncation |
|
a5a898f6886c
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|
1724 * NULL - if a default value was not specified |
|
194
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|
1725 * <li><b>SQL_DATA_TYPE</b> int => reserved for future use |
|
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|
1726 * <li><b>SQL_DATETIME_SUB</b> int => reserved for future use |
|
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|
1727 * <li><b>CHAR_OCTET_LENGTH</b> int => the maximum length of binary and character based columns. For any other datatype the returned value is a NULL |
|
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|
1728 * <li><b>ORDINAL_POSITION</b> int => the ordinal position, starting from 1, for the input and output parameters for a procedure. |
|
0
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|
1729 * A value of 0 is returned if this row describes the procedure's return value. For result set columns, it is the ordinal position of the |
|
a5a898f6886c
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|
1730 * column in the result set starting from 1. If there are multiple result sets, the column ordinal positions are implementation defined. |
|
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|
1731 * <li><b>IS_NULLABLE</b> String => ISO rules are used to determine the nullability for a column. |
|
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|
1732 * <ul><li>YES --- if the parameter can include NULLs |
|
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|
1733 * <li>NO --- if the parameter cannot include NULLs |
|
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|
1734 * <li>empty string --- if the nullability for the parameter is unknown |
|
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|
1735 * </ul> |
|
194
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|
1736 * <li><b>SPECIFIC_NAME</b> String => the name which uniquely identifies this procedure within its schema. |
|
0
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|
1737 * </ol> |
|
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|
1738 * @param catalog - a catalog name; must match the catalog name as it is stored in the database; |
|
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|
1739 * "" retrieves those without a catalog; |
|
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|
1740 * null means that the catalog name should not be used to narrow the search |
|
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|
1741 * @param schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; |
|
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|
1742 * "" retrieves those without a schema; |
|
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|
1743 * null means that the schema name should not be used to narrow the search |
|
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|
1744 * @param procedureNamePattern - a procedure name pattern; must match the procedure name as it is stored in the database |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
1745 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
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1746 * @param columnNamePattern - a column name pattern; must match the column name as it is stored in the database |
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1747 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
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1748 * @return ResultSet - each row describes a stored procedure parameter or column |
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1749 * @throws SQLException if a database-access error occurs |
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1750 * @see #getSearchStringEscape |
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1751 */ |
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1752 @Override |
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1753 public ResultSet getProcedureColumns( |
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1754 final String catalog, |
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1755 final String schemaPattern, |
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1756 final String procedureNamePattern, |
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1757 final String columnNamePattern |
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1758 ) throws SQLException { |
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1759 final StringBuilder query = new StringBuilder(2900); |
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1760 query.append("SELECT cast(null as char(1)) AS \"PROCEDURE_CAT\", " + |
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1761 "s.\"name\" AS \"PROCEDURE_SCHEM\", " + |
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1762 "f.\"name\" AS \"PROCEDURE_NAME\", " + |
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1763 "a.\"name\" AS \"COLUMN_NAME\", " + |
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1764 "cast(CASE a.\"inout\"" + |
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1765 " WHEN 0 THEN (CASE a.\"number\" WHEN 0 THEN ").append(DatabaseMetaData.procedureColumnReturn).append(" ELSE ").append(DatabaseMetaData.procedureColumnOut).append(" END)" + |
|
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1766 " WHEN 1 THEN ").append(DatabaseMetaData.procedureColumnIn) |
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1767 .append(" ELSE ").append(DatabaseMetaData.procedureColumnUnknown).append(" END AS smallint) AS \"COLUMN_TYPE\", " + |
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1768 "cast(").append(MonetDriver.getSQLTypeMap("a.\"type\"")).append(" AS int) AS \"DATA_TYPE\", " + |
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1769 "a.\"type\" AS \"TYPE_NAME\", " + |
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1770 "CASE a.\"type\" WHEN 'tinyint' THEN 3 WHEN 'smallint' THEN 5 WHEN 'int' THEN 10 WHEN 'bigint' THEN 19" + |
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1771 " WHEN 'hugeint' THEN 38 WHEN 'oid' THEN 19 WHEN 'wrd' THEN 19 ELSE a.\"type_digits\" END AS \"PRECISION\", " + |
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1772 "CASE a.\"type\" WHEN 'tinyint' THEN 1 WHEN 'smallint' THEN 2 WHEN 'int' THEN 4 WHEN 'bigint' THEN 8" + |
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1773 " WHEN 'hugeint' THEN 16 WHEN 'oid' THEN 8 WHEN 'wrd' THEN 8 ELSE a.\"type_digits\" END AS \"LENGTH\", " + |
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1774 "cast(CASE WHEN a.\"type\" IN ('tinyint','smallint','int','bigint','hugeint','oid','wrd','decimal','numeric'," + |
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1775 "'time','timetz','timestamp','timestamptz','day_interval','month_interval','sec_interval') THEN a.\"type_scale\" ELSE NULL END AS smallint) AS \"SCALE\", " + |
|
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1776 "cast(CASE WHEN a.\"type\" IN ('tinyint','smallint','int','bigint','hugeint','oid','wrd','decimal','numeric') THEN 10" + |
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1777 " WHEN a.\"type\" IN ('real','float','double') THEN 2 ELSE NULL END AS smallint) AS \"RADIX\", " + |
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1778 "cast(").append(DatabaseMetaData.procedureNullableUnknown).append(" AS smallint) AS \"NULLABLE\", " + |
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1779 "cast(null as char(1)) AS \"REMARKS\", " + |
|
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1780 "cast(null as char(1)) AS \"COLUMN_DEF\", " + |
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1781 "cast(0 as int) AS \"SQL_DATA_TYPE\", " + |
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1782 "cast(0 as int) AS \"SQL_DATETIME_SUB\", " + |
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1783 "cast(CASE WHEN a.\"type\" IN ('char','varchar','clob') THEN a.\"type_digits\" ELSE NULL END as int) AS \"CHAR_OCTET_LENGTH\", " + |
|
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1784 // in MonetDB procedures have no return value by design. The arguments in sys.args are numbered from 0 so we must add 1 to comply with the API specification. |
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1785 "cast(a.\"number\" + 1 as int) AS \"ORDINAL_POSITION\", " + |
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1786 "cast('' as varchar(3)) AS \"IS_NULLABLE\", " + |
|
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1787 // the specific name contains the function id, in order to be able to match the args to the correct overloaded procedure name |
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1788 "cast(f.\"id\" as varchar(10)) AS \"SPECIFIC_NAME\" " + |
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1789 "FROM \"sys\".\"args\" a " + |
|
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1790 "JOIN \"sys\".\"functions\" f ON a.\"func_id\" = f.\"id\" " + |
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1791 "JOIN \"sys\".\"schemas\" s ON f.\"schema_id\" = s.\"id\" " + |
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1792 // include procedures only (type = 2). Others will be returned via getFunctionColumns() |
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1793 "WHERE f.\"type\" = 2"); |
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1794 |
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1795 if (catalog != null && !catalog.isEmpty()) { |
|
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1796 // non-empty catalog selection. |
|
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1797 // as we do not support catalogs this always results in no rows returned |
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1798 query.append(" AND 1=0"); |
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1799 } else { |
|
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1800 if (schemaPattern != null && !schemaPattern.equals("%")) { |
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1801 query.append(" AND s.\"name\" ").append(composeMatchPart(schemaPattern)); |
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1802 } |
|
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1803 if (procedureNamePattern != null && !procedureNamePattern.equals("%")) { |
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1804 query.append(" AND f.\"name\" ").append(composeMatchPart(procedureNamePattern)); |
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1805 } |
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1806 if (columnNamePattern != null && !columnNamePattern.equals("%")) { |
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1807 query.append(" AND a.\"name\" ").append(composeMatchPart(columnNamePattern)); |
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1808 } |
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1809 } |
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1810 |
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1811 query.append(" ORDER BY \"PROCEDURE_SCHEM\", \"PROCEDURE_NAME\", \"SPECIFIC_NAME\", \"ORDINAL_POSITION\""); |
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1812 |
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1813 return executeMetaDataQuery(query.toString()); |
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1814 } |
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1815 |
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1816 /** |
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1817 * Retrieves a description of the tables available in the given catalog. |
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1818 * Only table descriptions matching the catalog, schema, table name and type criteria are returned. |
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1819 * They are ordered by TABLE_TYPE, TABLE_CAT, TABLE_SCHEM and TABLE_NAME. |
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1820 * |
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1821 * <p>Each table description has the following columns: |
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1822 * |
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1823 * <ol> |
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1824 * <li><b>TABLE_CAT</b> String => table catalog (may be null) |
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1825 * <li><b>TABLE_SCHEM</b> String => table schema (may be null) |
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1826 * <li><b>TABLE_NAME</b> String => table name |
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1827 * <li><b>TABLE_TYPE</b> String => table type. Typical types are "TABLE", |
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1828 * "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM". |
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1829 * <li><b>REMARKS</b> String => explanatory comment on the table |
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1830 * <li><b>TYPE_CAT</b> String => the types catalog (may be null) |
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1831 * <li><b>TYPE_SCHEM</b> String => the types schema (may be null) |
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1832 * <li><b>TYPE_NAME</b> String => type name (may be null) |
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1833 * <li><b>SELF_REFERENCING_COL_NAME</b> String => name of the designated "identifier" column of a typed table (may be null) |
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1834 * <li><b>REF_GENERATION</b> String => specifies how values in SELF_REFERENCING_COL_NAME are created. Values are "SYSTEM", "USER", "DERIVED". (may be null) |
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1835 * </ol> |
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1836 * |
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1837 * @param catalog - a catalog name; must match the catalog name as it is stored in the database; |
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1838 * "" retrieves those without a catalog; null means that the |
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1839 * catalog name should not be used to narrow the search |
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1840 * @param schemaPattern - a schema name pattern; must match the schema name as it is stored |
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1841 * in the database; "" retrieves those without a schema; |
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1842 * null means that the schema name should not be used to narrow the search |
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1843 * @param tableNamePattern - a table name pattern; must match the table name as it is stored in the database |
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1844 * For all tables this should be "%" |
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1845 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
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1846 * @param types - a list of table types, which must be from the list of table types returned |
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1847 * from getTableTypes(),to include; null returns all types |
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1848 * @return ResultSet - each row is a table description |
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1849 * @throws SQLException if a database-access error occurs. |
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1850 */ |
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1851 @Override |
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1852 public ResultSet getTables( |
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1853 final String catalog, |
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1854 final String schemaPattern, |
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1855 final String tableNamePattern, |
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1856 final String types[] |
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1857 ) throws SQLException |
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1858 { |
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1859 // as of Jul2015 release the sys.tables.type values (0 through 6) is extended with new values 10, 11, 20, and 30 (for system and temp tables/views). |
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1860 // as of Jul2015 release we also have a new table: sys.table_types with names for the new table types |
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1861 // for correct behavior we need to know if the server is using the old (pre Jul2015) or new sys.tables.type values |
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1862 final boolean preJul2015 = ("11.19.15".compareTo(getDatabaseProductVersion()) >= 0); |
|
331
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1863 // for debug: System.out.println("getDatabaseProductVersion() is " + getDatabaseProductVersion() + " preJul2015 is " + preJul2015); |
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1864 |
|
332
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1865 final boolean useCommentsTable = con.commentsTableExists(); |
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1866 final StringBuilder query = new StringBuilder(1600); |
|
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1867 if (preJul2015 && types != null && types.length > 0) { |
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1868 // we need to filter on the constructed "TABLE_TYPE" expression, this is only possible when we use a subquery in the FROM |
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1869 query.append("SELECT * FROM ("); |
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1870 } |
|
217
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1871 query.append("SELECT cast(null as char(1)) AS \"TABLE_CAT\", " + |
|
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1872 "s.\"name\" AS \"TABLE_SCHEM\", " + |
|
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|
1873 "t.\"name\" AS \"TABLE_NAME\", "); |
|
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1874 if (preJul2015) { |
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1875 query.append( |
|
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1876 "CASE WHEN t.\"system\" = true AND t.\"type\" IN (0, 10) AND t.\"temporary\" = 0 THEN 'SYSTEM TABLE' " + |
|
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1877 "WHEN t.\"system\" = true AND t.\"type\" IN (1, 11) AND t.\"temporary\" = 0 THEN 'SYSTEM VIEW' " + |
|
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1878 "WHEN t.\"system\" = false AND t.\"type\" = 0 AND t.\"temporary\" = 0 THEN 'TABLE' " + |
|
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1879 "WHEN t.\"system\" = false AND t.\"type\" = 1 AND t.\"temporary\" = 0 THEN 'VIEW' " + |
|
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|
1880 "WHEN t.\"system\" = true AND t.\"type\" IN (0, 20) AND t.\"temporary\" = 1 THEN 'SYSTEM SESSION TABLE' " + |
|
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|
1881 "WHEN t.\"system\" = true AND t.\"type\" IN (1, 21) AND t.\"temporary\" = 1 THEN 'SYSTEM SESSION VIEW' " + |
|
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|
1882 "WHEN t.\"system\" = false AND t.\"type\" IN (0, 30) AND t.\"temporary\" = 1 THEN 'SESSION TABLE' " + |
|
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1883 "WHEN t.\"system\" = false AND t.\"type\" IN (1, 31) AND t.\"temporary\" = 1 THEN 'SESSION VIEW' " + |
|
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|
1884 "END AS \"TABLE_TYPE\", "); |
|
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1885 } else { |
|
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|
1886 query.append("tt.\"table_type_name\" AS \"TABLE_TYPE\", "); |
|
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1887 } |
|
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|
1888 query.append(useCommentsTable ? "COALESCE(cm.\"remark\", t.\"query\")" : "t.\"query\"").append(" AS \"REMARKS\", " + |
|
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|
1889 "cast(null as char(1)) AS \"TYPE_CAT\", " + |
|
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|
1890 "cast(null as char(1)) AS \"TYPE_SCHEM\", " + |
|
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|
1891 "cast(null as char(1)) AS \"TYPE_NAME\", " + |
|
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|
1892 "cast(null as char(1)) AS \"SELF_REFERENCING_COL_NAME\", " + |
|
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|
1893 "cast(null as char(1)) AS \"REF_GENERATION\" " + |
|
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|
1894 "FROM \"sys\".\"tables\" t "); |
|
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1895 if (!preJul2015) { |
|
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|
1896 query.append("JOIN \"sys\".\"table_types\" tt ON t.\"type\" = tt.\"table_type_id\" "); |
|
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1897 } |
|
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|
1898 query.append("JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" "); |
|
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1899 if (useCommentsTable) { |
|
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|
1900 query.append("LEFT OUTER JOIN \"sys\".\"comments\" cm ON t.\"id\" = cm.\"id\" "); |
|
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1901 } |
|
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1902 |
|
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1903 boolean needWhere = true; |
|
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|
1904 if (catalog != null && !catalog.isEmpty()) { |
|
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|
1905 // non-empty catalog selection. |
|
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1906 // as we do not support catalogs this always results in no rows returned |
|
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1907 query.append("WHERE 1=0"); |
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1908 needWhere = false; |
|
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1909 } else { |
|
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1910 if (schemaPattern != null && !schemaPattern.equals("%")) { |
|
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1911 query.append("WHERE s.\"name\" ").append(composeMatchPart(schemaPattern)); |
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1912 needWhere = false; |
|
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1913 } |
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1914 if (tableNamePattern != null && !tableNamePattern.equals("%")) { |
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1915 query.append(needWhere ? "WHERE" : " AND") |
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1916 .append(" t.\"name\" ").append(composeMatchPart(tableNamePattern)); |
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1917 needWhere = false; |
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1918 } |
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1919 } |
|
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1920 |
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1921 if (types != null && types.length > 0) { |
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1922 if (preJul2015) { |
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1923 query.append(") AS \"getTables\" WHERE \"TABLE_TYPE\" IN ("); |
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1924 } else { |
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1925 query.append(needWhere ? "WHERE" : " AND") |
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1926 .append(" tt.\"table_type_name\" IN ("); |
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1927 } |
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1928 for (int i = 0; i < types.length; i++) { |
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1929 if (i > 0) { |
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1930 query.append(", "); |
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1931 } |
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1932 query.append("'").append(types[i]).append("'"); |
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1933 } |
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1934 query.append(")"); |
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1935 } |
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1936 |
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1937 query.append(" ORDER BY \"TABLE_TYPE\", \"TABLE_SCHEM\", \"TABLE_NAME\""); |
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1938 |
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1939 return executeMetaDataQuery(query.toString()); |
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1940 } |
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1941 |
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1942 /** |
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1943 * Get the schema names available in this database. The results |
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1944 * are ordered by schema name. |
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1945 * |
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1946 * <P>The schema column is: |
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1947 * <OL> |
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1948 * <LI><B>TABLE_SCHEM</B> String => schema name |
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1949 * <LI><B>TABLE_CATALOG</B> String => catalog name (may be null) |
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1950 * </OL> |
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1951 * |
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1952 * @param catalog a catalog name; must match the catalog name as it |
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1953 * is stored in the database;"" retrieves those without a |
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1954 * catalog; null means catalog name should not be used to |
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1955 * narrow down the search. |
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1956 * @param schemaPattern a schema name; must match the schema name as |
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1957 * it is stored in the database; null means schema name |
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1958 * should not be used to narrow down the search. |
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1959 * @return ResultSet each row has a single String column that is a |
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1960 * schema name |
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1961 * @throws SQLException if a database error occurs |
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1962 */ |
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1963 @Override |
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1964 public ResultSet getSchemas(final String catalog, final String schemaPattern) |
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1965 throws SQLException |
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1966 { |
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1967 final StringBuilder query = new StringBuilder(170); |
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1968 query.append("SELECT \"name\" AS \"TABLE_SCHEM\", " + |
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1969 "cast(null as char(1)) AS \"TABLE_CATALOG\" " + |
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1970 "FROM \"sys\".\"schemas\" "); |
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1971 |
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1972 if (catalog != null && !catalog.isEmpty()) { |
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1973 // non-empty catalog selection. |
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1974 // as we do not support catalogs this always results in no rows returned |
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1975 query.append("WHERE 1=0"); |
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1976 } else { |
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323
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1977 if (schemaPattern != null && !schemaPattern.equals("%")) { |
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1978 query.append("WHERE \"name\" ").append(composeMatchPart(schemaPattern)); |
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1979 } |
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1980 } |
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1981 query.append(" ORDER BY \"TABLE_SCHEM\""); |
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1982 |
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1983 return executeMetaDataQuery(query.toString()); |
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1984 } |
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1985 |
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1986 /** |
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1987 * Get the catalog names available in this database. The results |
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1988 * are ordered by catalog name. |
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1989 * |
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1990 * <P>The catalog column is: |
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1991 * <OL> |
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1992 * <LI><B>TABLE_CAT</B> String => catalog name |
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1993 * </OL> |
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1994 * |
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1995 * |
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1996 * @return ResultSet each row has a single String column that is a |
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1997 * catalog name |
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1998 * @throws SQLException if a database error occurs |
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1999 */ |
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2000 @Override |
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2001 public ResultSet getCatalogs() throws SQLException { |
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2002 // MonetDB does NOT support catalogs. |
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2003 // Return a resultset with no rows |
|
352
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2004 return executeMetaDataQuery("SELECT cast(null as char(1)) AS \"TABLE_CAT\" WHERE 1=0"); |
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2005 } |
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2006 |
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2007 /** |
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2008 * Get the table types available in this database. |
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2009 * The results are ordered by table type. |
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2010 * |
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2011 * <P>The table type is: |
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2012 * <OL> |
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2013 * <LI><B>TABLE_TYPE</B> String => table type. Typical types are "TABLE", |
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2014 * "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", |
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2015 * "LOCAL TEMPORARY", "ALIAS", "SYNONYM". |
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2016 * </OL> |
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2017 * |
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2018 * @return ResultSet each row has a single String column that is a table type |
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2019 * @throws SQLException if a database error occurs |
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2020 */ |
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2021 @Override |
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2022 public ResultSet getTableTypes() throws SQLException { |
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2023 // as of Jul2015 release we have a new table: sys.table_types with more table types |
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2024 String query = "SELECT \"table_type_name\" AS \"TABLE_TYPE\" FROM \"sys\".\"table_types\" ORDER BY 1"; |
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2025 |
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2026 // For old (pre jul2015) servers fall back to old behavior. |
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2027 if ("11.19.15".compareTo(getDatabaseProductVersion()) >= 0) |
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2028 query = "SELECT 'SESSION TABLE' AS \"TABLE_TYPE\" UNION ALL " + |
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2029 "SELECT 'SESSION VIEW' UNION ALL " + |
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2030 "SELECT 'SYSTEM SESSION TABLE' UNION ALL " + |
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2031 "SELECT 'SYSTEM SESSION VIEW' UNION ALL " + |
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2032 "SELECT 'SYSTEM TABLE' UNION ALL " + |
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Small code and doc improvements. Moved helper functions to the bottom.
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|
2033 "SELECT 'SYSTEM VIEW' UNION ALL " + |
|
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|
2034 "SELECT 'TABLE' UNION ALL " + |
|
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|
2035 "SELECT 'VIEW' ORDER BY 1"; |
|
0
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parents:
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|
2036 |
|
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parents:
diff
changeset
|
2037 return executeMetaDataQuery(query); |
|
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parents:
diff
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|
2038 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2039 |
|
a5a898f6886c
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parents:
diff
changeset
|
2040 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2041 * Get a description of table columns available in a catalog. |
|
a5a898f6886c
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parents:
diff
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|
2042 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2043 * <P>Only column descriptions matching the catalog, schema, table |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2044 * and column name criteria are returned. They are ordered by |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2045 * TABLE_SCHEM, TABLE_NAME and ORDINAL_POSITION. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2046 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2047 * <P>Each column description has the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2048 * <OL> |
|
194
1296dbcc4958
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186
diff
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|
2049 * <LI><B>TABLE_CAT</B> String => table catalog (may be null) |
|
1296dbcc4958
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186
diff
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|
2050 * <LI><B>TABLE_SCHEM</B> String => table schema (may be null) |
|
1296dbcc4958
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186
diff
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|
2051 * <LI><B>TABLE_NAME</B> String => table name |
|
1296dbcc4958
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186
diff
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|
2052 * <LI><B>COLUMN_NAME</B> String => column name |
|
1296dbcc4958
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186
diff
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|
2053 * <LI><B>DATA_TYPE</B> int => SQL type from java.sql.Types |
|
1296dbcc4958
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186
diff
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|
2054 * <LI><B>TYPE_NAME</B> String => Data source dependent type name |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2055 * <LI><B>COLUMN_SIZE</B> int => column size. For char or date |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2056 * types this is the maximum number of characters, for numeric or |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2057 * decimal types this is precision. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2058 * <LI><B>BUFFER_LENGTH</B> is not used. |
|
194
1296dbcc4958
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186
diff
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|
2059 * <LI><B>DECIMAL_DIGITS</B> int => the number of fractional digits |
|
1296dbcc4958
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parents:
186
diff
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|
2060 * <LI><B>NUM_PREC_RADIX</B> int => Radix (typically either 10 or 2) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
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|
2061 * <LI><B>NULLABLE</B> int => is NULL allowed? |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2062 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2063 * <LI> columnNoNulls - might not allow NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2064 * <LI> columnNullable - definitely allows NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2065 * <LI> columnNullableUnknown - nullability unknown |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2066 * </UL> |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
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|
2067 * <LI><B>REMARKS</B> String => comment describing column (may be null) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
2068 * <LI><B>COLUMN_DEF</B> String => default value (may be null) |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
2069 * <LI><B>SQL_DATA_TYPE</B> int => unused |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
2070 * <LI><B>SQL_DATETIME_SUB</B> int => unused |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
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|
2071 * <LI><B>CHAR_OCTET_LENGTH</B> int => for char types the |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2072 * maximum number of bytes in the column |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
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|
2073 * <LI><B>ORDINAL_POSITION</B> int => index of column in table |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2074 * (starting at 1) |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
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|
2075 * <LI><B>IS_NULLABLE</B> String => "NO" means column definitely |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2076 * does not allow NULL values; "YES" means the column might |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2077 * allow NULL values. An empty string means nobody knows. |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
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|
2078 * <LI><B>SCOPE_CATALOG</B> String => catalog of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
2079 * <LI><B>SCOPE_SCHEMA</B> String => schema of table that is the scope of a reference attribute (null if the DATA_TYPE isn't REF) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
2080 * <LI><B>SCOPE_TABLE</B> String => table name that this the scope of a reference attribute (null if the DATA_TYPE isn't REF) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
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|
2081 * <LI><B>SOURCE_DATA_TYPE</B> short => source type of a distinct type or user-generated Ref type, SQL type from java.sql.Types (null if DATA_TYPE isn't DISTINCT or user-generated REF) |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
2082 * <LI><B>IS_AUTOINCREMENT</B> String => Indicates whether this column is auto incremented |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2083 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2084 * <LI> YES --- if the column is auto incremented |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2085 * <LI> NO --- if the column is not auto incremented |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
2086 * <LI> empty string --- if it cannot be determined whether the column is auto incremented |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2087 * </UL> |
|
194
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|
2088 * <LI><B>IS_GENERATEDCOLUMN</B> String => Indicates whether this is a generated column |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
2089 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
2090 * <LI> YES --- if this a generated column |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2091 * <LI> NO --- if this not a generated column |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2092 * <LI> empty string --- if it cannot be determined whether this is a generated column |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
2093 * </UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2094 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2095 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2096 * @param catalog - a catalog name; must match the catalog name as it is stored in the database; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2097 * "" retrieves those without a catalog; null means that the |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2098 * catalog name should not be used to narrow the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2099 * @param schemaPattern - a schema name pattern; must match the schema name as it is stored |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
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|
2100 * in the database; "" retrieves those without a schema; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2101 * null means that the schema name should not be used to narrow the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2102 * @param tableNamePattern - a table name pattern; must match the table name as it is stored in the database |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2103 * For all tables this should be "%" |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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370
diff
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|
2104 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
a5a898f6886c
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|
2105 * @param columnNamePattern - a column name pattern; must match the column name as it is stored in the database |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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370
diff
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|
2106 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
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parents:
diff
changeset
|
2107 * @return ResultSet - each row is a column description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2108 * @throws SQLException if a database error occurs |
|
a5a898f6886c
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parents:
diff
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|
2109 * @see #getSearchStringEscape |
|
a5a898f6886c
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parents:
diff
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|
2110 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2111 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
2112 public ResultSet getColumns( |
|
295
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diff
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|
2113 final String catalog, |
|
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|
2114 final String schemaPattern, |
|
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|
2115 final String tableNamePattern, |
|
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|
2116 final String columnNamePattern |
|
0
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|
2117 ) throws SQLException |
|
a5a898f6886c
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parents:
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changeset
|
2118 { |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
2119 final boolean useCommentsTable = con.commentsTableExists(); |
|
295
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|
2120 final StringBuilder query = new StringBuilder(2450); |
|
0
a5a898f6886c
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|
2121 query.append("SELECT cast(null as char(1)) AS \"TABLE_CAT\", " + |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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300
diff
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|
2122 "s.\"name\" AS \"TABLE_SCHEM\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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diff
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|
2123 "t.\"name\" AS \"TABLE_NAME\", " + |
|
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Added table aliases and use them in all meta data SQL queries to reduce query size.
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|
2124 "c.\"name\" AS \"COLUMN_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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|
2125 "cast(").append(MonetDriver.getSQLTypeMap("c.\"type\"")).append(" AS int) AS \"DATA_TYPE\", " + |
|
1b6c514106ce
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|
2126 "c.\"type\" AS \"TYPE_NAME\", " + |
|
1b6c514106ce
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300
diff
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|
2127 "c.\"type_digits\" AS \"COLUMN_SIZE\", " + |
|
331
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
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|
2128 "cast(0 as int) AS \"BUFFER_LENGTH\", " + |
|
302
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2129 "c.\"type_scale\" AS \"DECIMAL_DIGITS\", " + |
|
379
d7661075ebf7
Add support for new (as of Oct2020 release) datatype: day_interval
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376
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|
2130 "cast(CASE WHEN c.\"type\" IN ('decimal','numeric','day_interval','month_interval','sec_interval') THEN 10 " + |
|
d7661075ebf7
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diff
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|
2131 "WHEN c.\"type\" IN ('int','smallint','tinyint','bigint','hugeint','float','real','double','oid','wrd') THEN 2 " + |
|
0
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|
2132 "ELSE 0 END AS int) AS \"NUM_PREC_RADIX\", " + |
|
302
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|
2133 "cast(CASE c.\"null\" WHEN true THEN ").append(ResultSetMetaData.columnNullable) |
|
215
71b039bc2d99
Added support for querying the sys.comments table for some meta data methods
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|
2134 .append(" WHEN false THEN ").append(ResultSetMetaData.columnNoNulls).append(" END AS int) AS \"NULLABLE\", ") |
|
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|
2135 .append(useCommentsTable ? "cm.\"remark\"" : "cast(null AS varchar(9999))").append(" AS \"REMARKS\", " + |
|
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|
2136 "c.\"default\" AS \"COLUMN_DEF\", " + |
|
0
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|
2137 "cast(0 as int) AS \"SQL_DATA_TYPE\", " + |
|
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|
2138 "cast(0 as int) AS \"SQL_DATETIME_SUB\", " + |
|
302
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2139 "cast(CASE WHEN c.\"type\" IN ('char','varchar','clob') THEN c.\"type_digits\" ELSE NULL END as int) AS \"CHAR_OCTET_LENGTH\", " + |
|
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|
2140 "cast(c.\"number\" + 1 as int) AS \"ORDINAL_POSITION\", " + |
|
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|
2141 "cast(CASE c.\"null\" WHEN true THEN 'YES' WHEN false THEN 'NO' ELSE '' END AS varchar(3)) AS \"IS_NULLABLE\", " + |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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2142 "cast(null AS char(1)) AS \"SCOPE_CATALOG\", " + |
|
7cbd20ff628c
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|
2143 "cast(null AS char(1)) AS \"SCOPE_SCHEMA\", " + |
|
7cbd20ff628c
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|
2144 "cast(null AS char(1)) AS \"SCOPE_TABLE\", " + |
|
168
70630bc76ac6
Correct returned value for column SOURCE_DATA_TYPE of method getColumns().
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|
2145 "cast(null AS smallint) AS \"SOURCE_DATA_TYPE\", " + |
|
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2146 "cast(CASE WHEN c.\"default\" IS NOT NULL AND c.\"default\" LIKE 'next value for %' THEN 'YES' ELSE 'NO' END AS varchar(3)) AS \"IS_AUTOINCREMENT\", " + |
|
0
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2147 "cast('NO' AS varchar(3)) AS \"IS_GENERATEDCOLUMN\" " + |
|
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|
2148 "FROM \"sys\".\"columns\" c " + |
|
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|
2149 "JOIN \"sys\".\"tables\" t ON c.\"table_id\" = t.\"id\" " + |
|
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|
2150 "JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" "); |
|
215
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|
2151 if (useCommentsTable) { |
|
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|
2152 query.append("LEFT OUTER JOIN \"sys\".\"comments\" cm ON c.\"id\" = cm.\"id\" "); |
|
215
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2153 } |
|
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|
2154 |
|
216
116b5a149fb4
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diff
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|
2155 if (catalog != null && !catalog.isEmpty()) { |
|
299
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|
2156 // non-empty catalog selection. |
|
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|
2157 // as we do not support catalogs this always results in no rows returned |
|
372
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|
2158 query.append("WHERE 1=0"); |
|
216
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|
2159 } else { |
|
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|
2160 boolean needWhere = true; |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
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|
2161 if (schemaPattern != null && !schemaPattern.equals("%")) { |
|
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|
2162 query.append("WHERE s.\"name\" ").append(composeMatchPart(schemaPattern)); |
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|
2163 needWhere = false; |
|
216
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2164 } |
|
323
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|
2165 if (tableNamePattern != null && !tableNamePattern.equals("%")) { |
|
372
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|
2166 query.append(needWhere ? "WHERE" : " AND") |
|
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|
2167 .append(" t.\"name\" ").append(composeMatchPart(tableNamePattern)); |
|
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|
2168 needWhere = false; |
|
216
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2169 } |
|
323
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|
2170 if (columnNamePattern != null && !columnNamePattern.equals("%")) { |
|
372
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|
2171 query.append(needWhere ? "WHERE" : " AND") |
|
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|
2172 .append(" c.\"name\" ").append(composeMatchPart(columnNamePattern)); |
|
216
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|
2173 } |
|
0
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|
2174 } |
|
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|
2175 |
|
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parents:
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changeset
|
2176 query.append(" ORDER BY \"TABLE_SCHEM\", \"TABLE_NAME\", \"ORDINAL_POSITION\""); |
|
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|
2177 |
|
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|
2178 return executeMetaDataQuery(query.toString()); |
|
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parents:
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|
2179 } |
|
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diff
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|
2180 |
|
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parents:
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|
2181 /** |
|
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diff
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|
2182 * Get a description of the access rights for a table's columns. |
|
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parents:
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|
2183 * MonetDB doesn't have this level of access rights. |
|
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parents:
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|
2184 * |
|
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|
2185 * <P>Only privileges matching the column name criteria are |
|
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parents:
diff
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|
2186 * returned. They are ordered by COLUMN_NAME and PRIVILEGE. |
|
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|
2187 * |
|
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|
2188 * <P>Each privilige description has the following columns: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2189 * <OL> |
|
194
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2190 * <LI><B>TABLE_CAT</B> String => table catalog (may be null) |
|
1296dbcc4958
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|
2191 * <LI><B>TABLE_SCHEM</B> String => table schema (may be null) |
|
1296dbcc4958
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|
2192 * <LI><B>TABLE_NAME</B> String => table name |
|
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|
2193 * <LI><B>COLUMN_NAME</B> String => column name |
|
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|
2194 * <LI><B>GRANTOR</B> => grantor of access (may be null) |
|
1296dbcc4958
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|
2195 * <LI><B>GRANTEE</B> String => grantee of access |
|
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|
2196 * <LI><B>PRIVILEGE</B> String => name of access (SELECT, |
|
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|
2197 * INSERT, UPDATE, REFRENCES, ...) |
|
194
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|
2198 * <LI><B>IS_GRANTABLE</B> String => "YES" if grantee is permitted |
|
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|
2199 * to grant to others; "NO" if not; null if unknown |
|
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|
2200 * </OL> |
|
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|
2201 * |
|
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|
2202 * @param catalog a catalog name; "" retrieves those without a catalog |
|
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|
2203 * @param schemaPattern a schema name; "" retrieves those without a schema |
|
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|
2204 * @param tableNamePattern a table name |
|
371
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|
2205 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
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|
2206 * @param columnNamePattern a column name pattern |
|
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|
2207 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
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|
2208 * @return ResultSet each row is a column privilege description |
|
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|
2209 * @see #getSearchStringEscape |
|
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|
2210 * @throws SQLException if a database error occurs |
|
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|
2211 */ |
|
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|
2212 @Override |
|
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|
2213 public ResultSet getColumnPrivileges( |
|
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|
2214 final String catalog, |
|
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|
2215 final String schemaPattern, |
|
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|
2216 final String tableNamePattern, |
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|
2217 final String columnNamePattern |
|
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|
2218 ) throws SQLException |
|
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|
2219 { |
|
332
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Moved utility methods and associated caches from DatabaseMetaData to Connection object.
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|
2220 final boolean usePrivilege_codesTable = con.privilege_codesTableExists(); |
|
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|
2221 final StringBuilder query = new StringBuilder(1100); |
|
0
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|
2222 query.append("SELECT cast(null as char(1)) AS \"TABLE_CAT\", " + |
|
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|
2223 "s.\"name\" AS \"TABLE_SCHEM\", " + |
|
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|
2224 "t.\"name\" AS \"TABLE_NAME\", " + |
|
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|
2225 "c.\"name\" AS \"COLUMN_NAME\", " + |
|
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|
2226 "grantors.\"name\" AS \"GRANTOR\", " + |
|
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|
2227 "grantees.\"name\" AS \"GRANTEE\", ") |
|
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|
2228 .append(usePrivilege_codesTable ? "pc.\"privilege_code_name\"" : |
|
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|
2229 "cast(CASE p.\"privileges\" " + |
|
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|
2230 "WHEN 1 THEN 'SELECT' " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2231 "WHEN 2 THEN 'UPDATE' " + |
|
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changeset
|
2232 "WHEN 4 THEN 'INSERT' " + |
|
a5a898f6886c
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parents:
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|
2233 "WHEN 8 THEN 'DELETE' " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2234 "WHEN 16 THEN 'EXECUTE' " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2235 "WHEN 32 THEN 'GRANT' " + |
|
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2236 "ELSE NULL " + |
|
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|
2237 "END AS varchar(7))").append(" AS \"PRIVILEGE\", " + |
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2238 "cast(CASE p.\"grantable\" " + |
|
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|
2239 "WHEN 0 THEN 'NO' " + |
|
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|
2240 "WHEN 1 THEN 'YES' " + |
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|
2241 "ELSE NULL " + |
|
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2242 "END AS varchar(3)) AS \"IS_GRANTABLE\" " + |
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2243 "FROM \"sys\".\"privileges\" p " + |
|
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2244 "JOIN \"sys\".\"columns\" c ON p.\"obj_id\" = c.\"id\" " + |
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2245 "JOIN \"sys\".\"tables\" t ON c.\"table_id\" = t.\"id\" " + |
|
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|
2246 "JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" " + |
|
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2247 "JOIN \"sys\".\"auths\" grantors ON p.\"grantor\" = grantors.\"id\" " + |
|
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|
2248 "JOIN \"sys\".\"auths\" grantees ON p.\"auth_id\" = grantees.\"id\" "); |
|
219
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2249 if (usePrivilege_codesTable) { |
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|
2250 query.append("JOIN \"sys\".\"privilege_codes\" pc ON p.\"privileges\" = pc.\"privilege_code_id\" "); |
|
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2251 } |
|
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2252 |
|
216
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|
2253 if (catalog != null && !catalog.isEmpty()) { |
|
299
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|
2254 // non-empty catalog selection. |
|
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|
2255 // as we do not support catalogs this always results in no rows returned |
|
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|
2256 query.append("WHERE 1=0"); |
|
216
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2257 } else { |
|
372
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2258 boolean needWhere = true; |
|
323
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|
2259 if (schemaPattern != null && !schemaPattern.equals("%")) { |
|
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|
2260 query.append("WHERE s.\"name\" ").append(composeMatchPart(schemaPattern)); |
|
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|
2261 needWhere = false; |
|
216
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|
2262 } |
|
323
8701024a9bb0
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|
2263 if (tableNamePattern != null && !tableNamePattern.equals("%")) { |
|
372
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|
2264 query.append(needWhere ? "WHERE" : " AND") |
|
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|
2265 .append(" t.\"name\" ").append(composeMatchPart(tableNamePattern)); |
|
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|
2266 needWhere = false; |
|
216
116b5a149fb4
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|
2267 } |
|
323
8701024a9bb0
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|
2268 if (columnNamePattern != null && !columnNamePattern.equals("%")) { |
|
372
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371
diff
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|
2269 query.append(needWhere ? "WHERE" : " AND") |
|
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2270 .append(" c.\"name\" ").append(composeMatchPart(columnNamePattern)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2271 } |
|
0
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|
2272 } |
|
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|
2273 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
2274 query.append(" ORDER BY \"TABLE_SCHEM\", \"TABLE_NAME\", \"COLUMN_NAME\", \"PRIVILEGE\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2275 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2276 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
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|
2277 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2278 |
|
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|
2279 /** |
|
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|
2280 * Get a description of the access rights for each table available |
|
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|
2281 * in a catalog. |
|
a5a898f6886c
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|
2282 * |
|
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|
2283 * <P>Only privileges matching the schema and table name |
|
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|
2284 * criteria are returned. They are ordered by TABLE_SCHEM, |
|
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|
2285 * TABLE_NAME, and PRIVILEGE. |
|
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|
2286 * |
|
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|
2287 * <P>Each privilege description has the following columns: |
|
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|
2288 * <OL> |
|
194
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|
2289 * <LI><B>TABLE_CAT</B> String => table catalog (may be null) |
|
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|
2290 * <LI><B>TABLE_SCHEM</B> String => table schema (may be null) |
|
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|
2291 * <LI><B>TABLE_NAME</B> String => table name |
|
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|
2292 * <LI><B>GRANTOR</B> => grantor of access (may be null) |
|
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|
2293 * <LI><B>GRANTEE</B> String => grantee of access |
|
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|
2294 * <LI><B>PRIVILEGE</B> String => name of access (SELECT, |
|
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|
2295 * INSERT, UPDATE, REFRENCES, ...) |
|
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|
2296 * <LI><B>IS_GRANTABLE</B> String => "YES" if grantee is permitted |
|
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|
2297 * to grant to others; "NO" if not; null if unknown |
|
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|
2298 * </OL> |
|
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|
2299 * |
|
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|
2300 * @param catalog a catalog name; "" retrieves those without a catalog |
|
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|
2301 * @param schemaPattern a schema name pattern; "" retrieves those without a schema |
|
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|
2302 * @param tableNamePattern a table name pattern |
|
371
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|
2303 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
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|
2304 * @return ResultSet each row is a table privilege description |
|
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|
2305 * @see #getSearchStringEscape |
|
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|
2306 * @throws SQLException if a database error occurs |
|
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|
2307 */ |
|
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|
2308 @Override |
|
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|
2309 public ResultSet getTablePrivileges( |
|
295
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|
2310 final String catalog, |
|
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|
2311 final String schemaPattern, |
|
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|
2312 final String tableNamePattern |
|
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|
2313 ) throws SQLException |
|
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|
2314 { |
|
332
e8962bdaa206
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|
2315 final boolean usePrivilege_codesTable = con.privilege_codesTableExists(); |
|
295
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|
2316 final StringBuilder query = new StringBuilder(1000); |
|
0
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|
2317 query.append("SELECT cast(null as char(1)) AS \"TABLE_CAT\", " + |
|
302
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|
2318 "s.\"name\" AS \"TABLE_SCHEM\", " + |
|
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|
2319 "t.\"name\" AS \"TABLE_NAME\", " + |
|
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|
2320 "grantors.\"name\" AS \"GRANTOR\", " + |
|
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|
2321 "grantees.\"name\" AS \"GRANTEE\", ") |
|
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|
2322 .append(usePrivilege_codesTable ? "pc.\"privilege_code_name\"" : |
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|
2323 "cast(CASE p.\"privileges\" " + |
|
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|
2324 "WHEN 1 THEN 'SELECT' " + |
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|
2325 "WHEN 2 THEN 'UPDATE' " + |
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|
2326 "WHEN 4 THEN 'INSERT' " + |
|
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|
2327 "WHEN 8 THEN 'DELETE' " + |
|
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|
2328 "WHEN 16 THEN 'EXECUTE' " + |
|
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|
2329 "WHEN 32 THEN 'GRANT' " + |
|
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|
2330 "ELSE NULL " + |
|
219
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2331 "END AS varchar(7))").append(" AS \"PRIVILEGE\", " + |
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2332 "cast(CASE p.\"grantable\" " + |
|
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|
2333 "WHEN 0 THEN 'NO' " + |
|
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|
2334 "WHEN 1 THEN 'YES' " + |
|
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|
2335 "ELSE NULL " + |
|
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2336 "END AS varchar(3)) AS \"IS_GRANTABLE\" " + |
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2337 "FROM \"sys\".\"privileges\" p " + |
|
1b6c514106ce
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2338 "JOIN \"sys\".\"tables\" t ON p.\"obj_id\" = t.\"id\" " + |
|
1b6c514106ce
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|
2339 "JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" " + |
|
1b6c514106ce
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|
2340 "JOIN \"sys\".\"auths\" grantors ON p.\"grantor\" = grantors.\"id\" " + |
|
1b6c514106ce
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|
2341 "JOIN \"sys\".\"auths\" grantees ON p.\"auth_id\" = grantees.\"id\" "); |
|
219
4572f0694fde
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|
2342 if (usePrivilege_codesTable) { |
|
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|
2343 query.append("JOIN \"sys\".\"privilege_codes\" pc ON p.\"privileges\" = pc.\"privilege_code_id\" "); |
|
219
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2344 } |
|
0
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2345 |
|
216
116b5a149fb4
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|
2346 if (catalog != null && !catalog.isEmpty()) { |
|
299
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|
2347 // non-empty catalog selection. |
|
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2348 // as we do not support catalogs this always results in no rows returned |
|
372
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|
2349 query.append("WHERE 1=0"); |
|
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2350 } else { |
|
372
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|
2351 boolean needWhere = true; |
|
323
8701024a9bb0
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2352 if (schemaPattern != null && !schemaPattern.equals("%")) { |
|
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|
2353 query.append("WHERE s.\"name\" ").append(composeMatchPart(schemaPattern)); |
|
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|
2354 needWhere = false; |
|
216
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2355 } |
|
323
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|
2356 if (tableNamePattern != null && !tableNamePattern.equals("%")) { |
|
372
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|
2357 query.append(needWhere ? "WHERE" : " AND") |
|
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|
2358 .append(" t.\"name\" ").append(composeMatchPart(tableNamePattern)); |
|
216
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|
2359 } |
|
0
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|
2360 } |
|
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|
2361 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2362 query.append(" ORDER BY \"TABLE_SCHEM\", \"TABLE_NAME\", \"PRIVILEGE\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2363 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2364 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2365 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2366 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2367 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2368 * Get a description of a table's optimal set of columns that |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2369 * uniquely identifies a row. They are ordered by SCOPE. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
2370 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2371 * <P>Each column description has the following columns: |
|
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|
2372 * <OL> |
|
194
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2373 * <LI><B>SCOPE</B> short => actual scope of result |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
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|
2374 * <UL> |
|
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|
2375 * <LI> bestRowTemporary - very temporary, while using row |
|
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|
2376 * <LI> bestRowTransaction - valid for remainder of current transaction |
|
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|
2377 * <LI> bestRowSession - valid for remainder of current session |
|
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|
2378 * </UL> |
|
194
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|
2379 * <LI><B>COLUMN_NAME</B> String => column name |
|
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|
2380 * <LI><B>DATA_TYPE</B> int => SQL data type from java.sql.Types |
|
1296dbcc4958
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|
2381 * <LI><B>TYPE_NAME</B> String => Data source dependent type name |
|
1296dbcc4958
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|
2382 * <LI><B>COLUMN_SIZE</B> int => precision |
|
1296dbcc4958
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|
2383 * <LI><B>BUFFER_LENGTH</B> int => not used |
|
1296dbcc4958
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|
2384 * <LI><B>DECIMAL_DIGITS</B> short => scale |
|
1296dbcc4958
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|
2385 * <LI><B>PSEUDO_COLUMN</B> short => is this a pseudo column |
|
0
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|
2386 * like an Oracle ROWID |
|
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|
2387 * <UL> |
|
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|
2388 * <LI> bestRowUnknown - may or may not be pseudo column |
|
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|
2389 * <LI> bestRowNotPseudo - is NOT a pseudo column |
|
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|
2390 * <LI> bestRowPseudo - is a pseudo column |
|
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|
2391 * </UL> |
|
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|
2392 * </OL> |
|
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|
2393 * |
|
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|
2394 * @param catalog a catalog name; "" retrieves those without a catalog |
|
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|
2395 * @param schema a schema name; "" retrieves those without a schema |
|
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|
2396 * @param table a table name |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
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|
2397 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
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|
2398 * @param scope the scope of interest; use same values as SCOPE |
|
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|
2399 * @param nullable include columns that are nullable? |
|
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|
2400 * @return ResultSet each row is a column description |
|
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|
2401 * @throws SQLException if a database error occurs |
|
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|
2402 */ |
|
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|
2403 @Override |
|
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|
2404 public ResultSet getBestRowIdentifier( |
|
295
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|
2405 final String catalog, |
|
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|
2406 final String schema, |
|
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|
2407 final String table, |
|
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|
2408 final int scope, |
|
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|
2409 final boolean nullable |
|
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|
2410 ) throws SQLException |
|
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|
2411 { |
|
331
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
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|
2412 // first find out if the table has a Primary Key, If it does, we should return only those columns |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
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|
2413 boolean hasPK = false; |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
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|
2414 ResultSet pkey = null; |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2415 try { |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2416 pkey = getPrimaryKeys(catalog, schema, table); |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2417 if (pkey != null && pkey.next()) { |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2418 hasPK = true; |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2419 } |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2420 } catch (SQLException e) { |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2421 // ignore |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2422 } finally { |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2423 MonetConnection.closeResultsetStatement(pkey, null); |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2424 } |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2425 |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
2426 final StringBuilder query = new StringBuilder(1500); |
|
331
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2427 // Note: DISTINCT is needed to filter out possible duplicate column names from multiple unique constraints |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2428 query.append("SELECT DISTINCT cast(").append(DatabaseMetaData.bestRowSession).append(" AS smallint) AS \"SCOPE\", " + |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2429 "c.\"name\" AS \"COLUMN_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2430 "cast(").append(MonetDriver.getSQLTypeMap("c.\"type\"")).append(" AS int) AS \"DATA_TYPE\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2431 "c.\"type\" AS \"TYPE_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2432 "c.\"type_digits\" AS \"COLUMN_SIZE\", " + |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
2433 "cast(0 as int) AS \"BUFFER_LENGTH\", " + |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2434 "cast(c.\"type_scale\" AS smallint) AS \"DECIMAL_DIGITS\", " + |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
2435 "cast(").append(DatabaseMetaData.bestRowNotPseudo).append(" AS smallint) AS \"PSEUDO_COLUMN\" " + |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2436 "FROM \"sys\".\"keys\" k " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2437 "JOIN \"sys\".\"objects\" o ON k.\"id\" = o.\"id\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2438 "JOIN \"sys\".\"columns\" c ON (k.\"table_id\" = c.\"table_id\" AND o.\"name\" = c.\"name\") " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2439 "JOIN \"sys\".\"tables\" t ON k.\"table_id\" = t.\"id\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2440 "JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" " + |
|
331
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2441 "WHERE k.\"type\" = ").append(hasPK ? "0" : "1"); // the primary key (type = 0) or else any unique key (type = 1) |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2442 // TODO: when there is no PK and there are multiple unique constraints, pick only the unique constraint which has a) the least number of columns and b) the smallest total(size in bytes) |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2443 |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
2444 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
298
diff
changeset
|
2445 // non-empty catalog selection. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2446 // as we do not support catalogs this always results in no rows returned |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
350
diff
changeset
|
2447 query.append(" AND 1=0"); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
2448 } else { |
|
331
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2449 if (scope == DatabaseMetaData.bestRowSession |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2450 || scope == DatabaseMetaData.bestRowTransaction |
|
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2451 || scope == DatabaseMetaData.bestRowTemporary) { |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
2452 if (schema != null && !schema.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2453 query.append(" AND s.\"name\" ").append(composeMatchPart(schema)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
2454 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
2455 if (table != null && !table.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2456 query.append(" AND t.\"name\" ").append(composeMatchPart(table)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
2457 } |
|
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
2458 if (!nullable) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2459 query.append(" AND c.\"null\" = false"); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
2460 } |
|
331
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2461 } else { |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
350
diff
changeset
|
2462 query.append(" AND 1=0"); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
2463 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2464 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2465 |
|
331
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
changeset
|
2466 query.append(" ORDER BY \"SCOPE\", o.\"nr\", \"COLUMN_NAME\""); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2467 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2468 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2469 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2470 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2471 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2472 * Get a description of a table's columns that are automatically |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2473 * updated when any value in a row is updated. They are unordered. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2474 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2475 * <P>Each column description has the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2476 * <OL> |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
2477 * <LI><B>SCOPE</B> short => is not used |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
2478 * <LI><B>COLUMN_NAME</B> String => column name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
2479 * <LI><B>DATA_TYPE</B> int => SQL data type from java.sql.Types |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
2480 * <LI><B>TYPE_NAME</B> String => Data source dependent type name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
2481 * <LI><B>COLUMN_SIZE</B> int => precision |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
2482 * <LI><B>BUFFER_LENGTH</B> int => length of column value in bytes |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
2483 * <LI><B>DECIMAL_DIGITS</B> short => scale |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
2484 * <LI><B>PSEUDO_COLUMN</B> short => is this a pseudo column like an Oracle ROWID |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2485 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2486 * <LI> versionColumnUnknown - may or may not be pseudo column |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2487 * <LI> versionColumnNotPseudo - is NOT a pseudo column |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2488 * <LI> versionColumnPseudo - is a pseudo column |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2489 * </UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2490 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2491 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2492 * @param catalog a catalog name; "" retrieves those without a catalog |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2493 * @param schema a schema name; "" retrieves those without a schema |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2494 * @param table a table name |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
370
diff
changeset
|
2495 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2496 * @return ResultSet each row is a column description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2497 * @throws SQLException if a database error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2498 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2499 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2500 public ResultSet getVersionColumns( |
|
295
003ae6d881db
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2501 final String catalog, |
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2502 final String schema, |
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2503 final String table |
|
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|
2504 ) throws SQLException |
|
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|
2505 { |
|
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|
2506 // MonetDB currently does not have columns which update themselves, so return an empty ResultSet |
|
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2507 final String query = |
|
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2508 "SELECT cast(0 as smallint) AS \"SCOPE\", " + |
|
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2509 "cast(null as char(1)) AS \"COLUMN_NAME\", " + |
|
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|
2510 "cast(0 as int) AS \"DATA_TYPE\", " + |
|
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|
2511 "cast(null as char(1)) AS \"TYPE_NAME\", " + |
|
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|
2512 "cast(0 as int) AS \"COLUMN_SIZE\", " + |
|
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|
2513 "cast(0 as int) AS \"BUFFER_LENGTH\", " + |
|
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|
2514 "cast(0 as smallint) AS \"DECIMAL_DIGITS\", " + |
|
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|
2515 "cast(0 as smallint) AS \"PSEUDO_COLUMN\" " + |
|
352
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|
2516 "WHERE 1=0"; |
|
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2517 |
|
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changeset
|
2518 return executeMetaDataQuery(query); |
|
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|
2519 } |
|
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2520 |
|
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|
2521 /** |
|
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changeset
|
2522 * Get a description of a table's primary key columns. They |
|
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|
2523 * are ordered by COLUMN_NAME. |
|
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|
2524 * |
|
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|
2525 * <P>Each column description has the following columns: |
|
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2526 * <OL> |
|
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2527 * <LI><B>TABLE_CAT</B> String => table catalog (may be null) |
|
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2528 * <LI><B>TABLE_SCHEM</B> String => table schema (may be null) |
|
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2529 * <LI><B>TABLE_NAME</B> String => table name |
|
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2530 * <LI><B>COLUMN_NAME</B> String => column name |
|
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2531 * <LI><B>KEY_SEQ</B> short => sequence number within primary key |
|
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2532 * <LI><B>PK_NAME</B> String => primary key name (may be null) |
|
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|
2533 * </OL> |
|
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|
2534 * |
|
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|
2535 * @param catalog a catalog name; "" retrieves those without a catalog |
|
245
55375d489024
Corrected return values of DatabaseMetaData methods allTablesAreSelectable() and allProceduresAreCallable().
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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2536 * @param schema a schema name pattern; "" retrieves those without a schema |
|
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|
2537 * @param table a table name |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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370
diff
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|
2538 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
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changeset
|
2539 * @return ResultSet each row is a primary key column description |
|
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changeset
|
2540 * @throws SQLException if a database error occurs |
|
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|
2541 */ |
|
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changeset
|
2542 @Override |
|
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|
2543 public ResultSet getPrimaryKeys( |
|
295
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diff
changeset
|
2544 final String catalog, |
|
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294
diff
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|
2545 final String schema, |
|
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Add "final" keyword to method arguments and local variables where possible.
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|
2546 final String table |
|
0
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|
2547 ) throws SQLException |
|
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|
2548 { |
|
295
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|
2549 final StringBuilder query = new StringBuilder(600); |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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216
diff
changeset
|
2550 query.append("SELECT cast(null AS char(1)) AS \"TABLE_CAT\", " + |
|
302
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2551 "s.\"name\" AS \"TABLE_SCHEM\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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changeset
|
2552 "t.\"name\" AS \"TABLE_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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diff
changeset
|
2553 "o.\"name\" AS \"COLUMN_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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diff
changeset
|
2554 "cast(1 + o.\"nr\" AS smallint) AS \"KEY_SEQ\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
2555 " k.\"name\" AS \"PK_NAME\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
changeset
|
2556 "FROM \"sys\".\"keys\" k " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
changeset
|
2557 "JOIN \"sys\".\"objects\" o ON k.\"id\" = o.\"id\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
2558 "JOIN \"sys\".\"tables\" t ON k.\"table_id\" = t.\"id\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
2559 "JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2560 "WHERE k.\"type\" = 0"); // only primary keys (type = 0) |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2561 |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
2562 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
298
diff
changeset
|
2563 // non-empty catalog selection. |
|
0
a5a898f6886c
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parents:
diff
changeset
|
2564 // as we do not support catalogs this always results in no rows returned |
|
352
f62137dd6050
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
350
diff
changeset
|
2565 query.append(" AND 1=0"); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
2566 } else { |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
2567 if (schema != null && !schema.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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300
diff
changeset
|
2568 query.append(" AND s.\"name\" ").append(composeMatchPart(schema)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
2569 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
2570 if (table != null && !table.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
2571 query.append(" AND t.\"name\" ").append(composeMatchPart(table)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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215
diff
changeset
|
2572 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
2573 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
2574 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2575 query.append(" ORDER BY \"TABLE_SCHEM\", \"TABLE_NAME\", \"COLUMN_NAME\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
2576 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2577 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2578 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2579 |
|
303
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
2580 // same SQL query used by getImportedKeys(), getExportedKeys() and getCrossReference() |
|
186
4767b005a531
Making variables private where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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177
diff
changeset
|
2581 private static final String keyQuery = |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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216
diff
changeset
|
2582 "SELECT cast(null AS char(1)) AS \"PKTABLE_CAT\", " + |
|
302
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
changeset
|
2583 "pkschema.\"name\" AS \"PKTABLE_SCHEM\", " + |
|
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
changeset
|
2584 "pktable.\"name\" AS \"PKTABLE_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
changeset
|
2585 "pkkeycol.\"name\" AS \"PKCOLUMN_NAME\", " + |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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216
diff
changeset
|
2586 "cast(null AS char(1)) AS \"FKTABLE_CAT\", " + |
|
302
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
changeset
|
2587 "fkschema.\"name\" AS \"FKTABLE_SCHEM\", " + |
|
1b6c514106ce
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diff
changeset
|
2588 "fktable.\"name\" AS \"FKTABLE_NAME\", " + |
|
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diff
changeset
|
2589 "fkkeycol.\"name\" AS \"FKCOLUMN_NAME\", " + |
|
217
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216
diff
changeset
|
2590 "cast(1 + \"pkkeycol\".\"nr\" AS smallint) AS \"KEY_SEQ\", " + |
|
0
a5a898f6886c
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diff
changeset
|
2591 DatabaseMetaData.importedKeyNoAction + " AS \"UPDATE_RULE\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
2592 DatabaseMetaData.importedKeyNoAction + " AS \"DELETE_RULE\", " + |
|
302
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diff
changeset
|
2593 "fkkey.\"name\" AS \"FK_NAME\", " + |
|
1b6c514106ce
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changeset
|
2594 "pkkey.\"name\" AS \"PK_NAME\", " + |
|
0
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2595 DatabaseMetaData.importedKeyNotDeferrable + " AS \"DEFERRABILITY\" " + |
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2596 "FROM \"sys\".\"keys\" pkkey " + |
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2597 "JOIN \"sys\".\"objects\" pkkeycol ON pkkey.\"id\" = pkkeycol.\"id\" " + |
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2598 "JOIN \"sys\".\"tables\" pktable ON pktable.\"id\" = pkkey.\"table_id\" " + |
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2599 "JOIN \"sys\".\"schemas\" pkschema ON pkschema.\"id\" = pktable.\"schema_id\" " + |
|
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2600 "JOIN \"sys\".\"keys\" fkkey ON fkkey.\"rkey\" = pkkey.\"id\" " + |
|
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|
2601 "JOIN \"sys\".\"objects\" fkkeycol ON (fkkey.\"id\" = fkkeycol.\"id\" AND fkkeycol.\"nr\" = pkkeycol.\"nr\") " + |
|
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|
2602 "JOIN \"sys\".\"tables\" fktable ON fktable.\"id\" = fkkey.\"table_id\" " + |
|
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|
2603 "JOIN \"sys\".\"schemas\" fkschema ON fkschema.\"id\" = fktable.\"schema_id\" " + |
|
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|
2604 "WHERE fkkey.\"rkey\" > 0"; // exclude invalid key references, such as -1 |
|
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|
2605 |
|
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|
2606 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2607 * Get a description of the primary key columns that are |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2608 * referenced by a table's foreign key columns (the primary keys |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2609 * imported by a table). They are ordered by PKTABLE_CAT, |
|
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|
2610 * PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ. |
|
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|
2611 * |
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|
2612 * <P>Each primary key column description has the following columns: |
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2613 * <OL> |
|
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2614 * <LI><B>PKTABLE_CAT</B> String => primary key table catalog |
|
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2615 * being imported (may be null) |
|
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2616 * <LI><B>PKTABLE_SCHEM</B> String => primary key table schema |
|
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2617 * being imported (may be null) |
|
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2618 * <LI><B>PKTABLE_NAME</B> String => primary key table name |
|
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2619 * being imported |
|
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2620 * <LI><B>PKCOLUMN_NAME</B> String => primary key column name |
|
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2621 * being imported |
|
194
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2622 * <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be null) |
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2623 * <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be null) |
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2624 * <LI><B>FKTABLE_NAME</B> String => foreign key table name |
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2625 * <LI><B>FKCOLUMN_NAME</B> String => foreign key column name |
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2626 * <LI><B>KEY_SEQ</B> short => sequence number within foreign key |
|
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|
2627 * (a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key). |
|
194
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2628 * <LI><B>UPDATE_RULE</B> short => What happens to |
|
0
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|
2629 * foreign key when primary is updated: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2630 * <UL> |
|
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parents:
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2631 * <LI> importedKeyNoAction - do not allow update of primary key if it has been imported |
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2632 * <LI> importedKeyCascade - change imported key to agree |
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|
2633 * with primary key update |
|
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|
2634 * <LI> importedKeyRestrict - do not allow update of primary |
|
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|
2635 * key if it has been imported |
|
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|
2636 * <LI> importedKeySetNull - change imported key to NULL if |
|
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diff
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|
2637 * its primary key has been updated |
|
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|
2638 * </UL> |
|
194
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|
2639 * <LI><B>DELETE_RULE</B> short => What happens to |
|
0
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|
2640 * the foreign key when primary is deleted. |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2641 * <UL> |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2642 * <LI> importedKeyNoAction - do not allow delete of primary key if it has been imported |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2643 * <LI> importedKeyCascade - delete rows that import a deleted key |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2644 * <LI> importedKeyRestrict - do not allow delete of primary |
|
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|
2645 * key if it has been imported |
|
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|
2646 * <LI> importedKeySetNull - change imported key to NULL if |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2647 * its primary key has been deleted |
|
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|
2648 * </UL> |
|
194
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|
2649 * <LI><B>FK_NAME</B> String => foreign key name (may be null) |
|
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|
2650 * <LI><B>PK_NAME</B> String => primary key name (may be null) |
|
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|
2651 * <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key constraints be deferred until commit |
|
0
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|
2652 * <UL> |
|
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|
2653 * <LI> importedKeyInitiallyDeferred - see SQL92 for definition |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
2654 * <LI> importedKeyInitiallyImmediate - see SQL92 for definition |
|
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|
2655 * <LI> importedKeyNotDeferrable - see SQL92 for definition |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2656 * </UL> |
|
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parents:
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|
2657 * </OL> |
|
a5a898f6886c
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|
2658 * |
|
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|
2659 * @param catalog a catalog name; "" retrieves those without a catalog |
|
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|
2660 * @param schema a schema name pattern; "" retrieves those without a schema |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2661 * @param table a table name |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
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|
2662 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
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|
2663 * @return ResultSet each row is a primary key column description |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2664 * @see #getExportedKeys |
|
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|
2665 * @throws SQLException if a database error occurs |
|
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|
2666 */ |
|
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|
2667 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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diff
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|
2668 public ResultSet getImportedKeys( |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
2669 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
2670 final String schema, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
2671 final String table |
|
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Add "final" keyword to method arguments and local variables where possible.
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|
2672 ) throws SQLException |
|
0
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|
2673 { |
|
295
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|
2674 final StringBuilder query = new StringBuilder(keyQuery.length() + 250); |
|
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|
2675 query.append(keyQuery); |
|
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|
2676 |
|
216
116b5a149fb4
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|
2677 if (catalog != null && !catalog.isEmpty()) { |
|
299
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|
2678 // non-empty catalog selection. |
|
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|
2679 // as we do not support catalogs this always results in no rows returned |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
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|
2680 query.append(" AND 1=0"); |
|
216
116b5a149fb4
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|
2681 } else { |
|
323
8701024a9bb0
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|
2682 if (schema != null && !schema.equals("%")) { |
|
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|
2683 query.append(" AND fkschema.\"name\" ").append(composeMatchPart(schema)); |
|
216
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|
2684 } |
|
323
8701024a9bb0
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|
2685 if (table != null && !table.equals("%")) { |
|
302
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changeset
|
2686 query.append(" AND fktable.\"name\" ").append(composeMatchPart(table)); |
|
216
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|
2687 } |
|
0
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|
2688 } |
|
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|
2689 |
|
a5a898f6886c
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changeset
|
2690 query.append(" ORDER BY \"PKTABLE_SCHEM\", \"PKTABLE_NAME\", \"PK_NAME\", \"KEY_SEQ\""); |
|
a5a898f6886c
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|
2691 |
|
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|
2692 return executeMetaDataQuery(query.toString()); |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2693 } |
|
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|
2694 |
|
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|
2695 /** |
|
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diff
changeset
|
2696 * Get a description of a foreign key columns that reference a |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2697 * table's primary key columns (the foreign keys exported by a table). |
|
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|
2698 * They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ. |
|
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|
2699 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2700 * <P>Each foreign key column description has the following columns: |
|
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|
2701 * <OL> |
|
194
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2702 * <LI><B>PKTABLE_CAT</B> String => primary key table catalog (may be null) |
|
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2703 * <LI><B>PKTABLE_SCHEM</B> String => primary key table schema (may be null) |
|
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2704 * <LI><B>PKTABLE_NAME</B> String => primary key table name |
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2705 * <LI><B>PKCOLUMN_NAME</B> String => primary key column name |
|
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2706 * <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be null) |
|
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2707 * being exported (may be null) |
|
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2708 * <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be null) |
|
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2709 * being exported (may be null) |
|
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2710 * <LI><B>FKTABLE_NAME</B> String => foreign key table name |
|
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2711 * being exported |
|
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2712 * <LI><B>FKCOLUMN_NAME</B> String => foreign key column name |
|
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|
2713 * being exported |
|
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2714 * <LI><B>KEY_SEQ</B> short => sequence number within foreign key |
|
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|
2715 * (a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key). |
|
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2716 * <LI><B>UPDATE_RULE</B> short => What happens to |
|
0
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|
2717 * foreign key when primary is updated: |
|
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|
2718 * <UL> |
|
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2719 * <LI> importedKeyNoAction - do not allow update of primary key if it has been imported |
|
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|
2720 * <LI> importedKeyCascade - change imported key to agree |
|
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|
2721 * with primary key update |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2722 * <LI> importedKeyRestrict - do not allow update of primary |
|
a5a898f6886c
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|
2723 * key if it has been imported |
|
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|
2724 * <LI> importedKeySetNull - change imported key to NULL if |
|
a5a898f6886c
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|
2725 * its primary key has been updated |
|
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|
2726 * </UL> |
|
194
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2727 * <LI><B>DELETE_RULE</B> short => What happens to |
|
0
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parents:
diff
changeset
|
2728 * the foreign key when primary is deleted. |
|
a5a898f6886c
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parents:
diff
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|
2729 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2730 * <LI> importedKeyNoAction - do not allow delete of primary key if it has been imported |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
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|
2731 * <LI> importedKeyCascade - delete rows that import a deleted key |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2732 * <LI> importedKeyRestrict - do not allow delete of primary |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
2733 * key if it has been imported |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2734 * <LI> importedKeySetNull - change imported key to NULL if |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2735 * its primary key has been deleted |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2736 * </UL> |
|
194
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|
2737 * <LI><B>FK_NAME</B> String => foreign key identifier (may be null) |
|
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|
2738 * <LI><B>PK_NAME</B> String => primary key identifier (may be null) |
|
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|
2739 * <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key constraints be deferred until commit |
|
0
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|
2740 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2741 * <LI> importedKeyInitiallyDeferred - see SQL92 for definition |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2742 * <LI> importedKeyInitiallyImmediate - see SQL92 for definition |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2743 * <LI> importedKeyNotDeferrable - see SQL92 for definition |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2744 * </UL> |
|
a5a898f6886c
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parents:
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|
2745 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2746 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
2747 * @param catalog a catalog name; "" retrieves those without a catalog |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2748 * @param schema a schema name pattern; "" retrieves those without a schema |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2749 * @param table a table name |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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370
diff
changeset
|
2750 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
a5a898f6886c
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|
2751 * @return ResultSet each row is a foreign key column description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2752 * @see #getImportedKeys |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2753 * @throws SQLException if a database error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2754 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2755 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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294
diff
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|
2756 public ResultSet getExportedKeys( |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
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|
2757 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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diff
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|
2758 final String schema, |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
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370
diff
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|
2759 final String table |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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diff
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|
2760 ) throws SQLException |
|
0
a5a898f6886c
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|
2761 { |
|
295
003ae6d881db
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diff
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|
2762 final StringBuilder query = new StringBuilder(keyQuery.length() + 250); |
|
0
a5a898f6886c
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|
2763 query.append(keyQuery); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2764 |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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215
diff
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|
2765 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
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298
diff
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|
2766 // non-empty catalog selection. |
|
0
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|
2767 // as we do not support catalogs this always results in no rows returned |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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350
diff
changeset
|
2768 query.append(" AND 1=0"); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
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|
2769 } else { |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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306
diff
changeset
|
2770 if (schema != null && !schema.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
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|
2771 query.append(" AND pkschema.\"name\" ").append(composeMatchPart(schema)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
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diff
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|
2772 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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306
diff
changeset
|
2773 if (table != null && !table.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
changeset
|
2774 query.append(" AND pktable.\"name\" ").append(composeMatchPart(table)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
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|
2775 } |
|
0
a5a898f6886c
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changeset
|
2776 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
2777 |
|
a5a898f6886c
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diff
changeset
|
2778 query.append(" ORDER BY \"FKTABLE_SCHEM\", \"FKTABLE_NAME\", \"FK_NAME\", \"KEY_SEQ\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
2779 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
2780 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
2781 } |
|
a5a898f6886c
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diff
changeset
|
2782 |
|
a5a898f6886c
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parents:
diff
changeset
|
2783 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2784 * Get a description of the foreign key columns in the foreign key |
|
a5a898f6886c
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changeset
|
2785 * table that reference the primary key columns of the primary key |
|
a5a898f6886c
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changeset
|
2786 * table. (describe how one table imports another's key) This |
|
a5a898f6886c
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parents:
diff
changeset
|
2787 * should normally return a single foreign key/primary key pair |
|
a5a898f6886c
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parents:
diff
changeset
|
2788 * (most tables only import a foreign key from a table once.) |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2789 * They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ. |
|
a5a898f6886c
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changeset
|
2790 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2791 * <P>Each foreign key column description has the following columns: |
|
a5a898f6886c
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|
2792 * <OL> |
|
194
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|
2793 * <LI><B>PKTABLE_CAT</B> String => primary key table catalog (may be null) |
|
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|
2794 * <LI><B>PKTABLE_SCHEM</B> String => primary key table schema (may be null) |
|
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|
2795 * <LI><B>PKTABLE_NAME</B> String => primary key table name |
|
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|
2796 * <LI><B>PKCOLUMN_NAME</B> String => primary key column name |
|
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|
2797 * <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be null) |
|
0
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|
2798 * being exported (may be null) |
|
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2799 * <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be null) |
|
0
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|
2800 * being exported (may be null) |
|
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|
2801 * <LI><B>FKTABLE_NAME</B> String => foreign key table name |
|
0
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|
2802 * being exported |
|
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|
2803 * <LI><B>FKCOLUMN_NAME</B> String => foreign key column name |
|
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|
2804 * being exported |
|
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|
2805 * <LI><B>KEY_SEQ</B> short => sequence number within foreign key |
|
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|
2806 * (a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key). |
|
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2807 * <LI><B>UPDATE_RULE</B> short => What happens to |
|
0
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|
2808 * foreign key when primary is updated: |
|
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parents:
diff
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|
2809 * <UL> |
|
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|
2810 * <LI> importedKeyNoAction - do not allow update of primary key if it has been imported |
|
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|
2811 * <LI> importedKeyCascade - change imported key to agree |
|
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|
2812 * with primary key update |
|
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parents:
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|
2813 * <LI> importedKeyRestrict - do not allow update of primary |
|
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|
2814 * key if it has been imported |
|
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|
2815 * <LI> importedKeySetNull - change imported key to NULL if |
|
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parents:
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|
2816 * its primary key has been updated |
|
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|
2817 * </UL> |
|
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2818 * <LI><B>DELETE_RULE</B> short => What happens to |
|
0
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parents:
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changeset
|
2819 * the foreign key when primary is deleted. |
|
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|
2820 * <UL> |
|
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|
2821 * <LI> importedKeyNoAction - do not allow delete of primary key if it has been imported |
|
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|
2822 * <LI> importedKeyCascade - delete rows that import a deleted key |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2823 * <LI> importedKeyRestrict - do not allow delete of primary |
|
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parents:
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changeset
|
2824 * key if it has been imported |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2825 * <LI> importedKeySetNull - change imported key to NULL if |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2826 * its primary key has been deleted |
|
a5a898f6886c
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parents:
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|
2827 * </UL> |
|
194
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|
2828 * <LI><B>FK_NAME</B> String => foreign key identifier (may be null) |
|
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|
2829 * <LI><B>PK_NAME</B> String => primary key identifier (may be null) |
|
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|
2830 * <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key constraints be deferred until commit |
|
0
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parents:
diff
changeset
|
2831 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2832 * <LI> importedKeyInitiallyDeferred - see SQL92 for definition |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2833 * <LI> importedKeyInitiallyImmediate - see SQL92 for definition |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2834 * <LI> importedKeyNotDeferrable - see SQL92 for definition |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2835 * </UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2836 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2837 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2838 * @param pcatalog primary key catalog name; "" retrieves those without a catalog |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2839 * @param pschema primary key schema name pattern; "" retrieves those without a schema |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2840 * @param ptable primary key table name |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
370
diff
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|
2841 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
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parents:
diff
changeset
|
2842 * @param fcatalog foreign key catalog name; "" retrieves those without a catalog |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2843 * @param fschema foreign key schema name pattern; "" retrieves those without a schema |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2844 * @param ftable koreign key table name |
|
371
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Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
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diff
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|
2845 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2846 * @return ResultSet each row is a foreign key column description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2847 * @throws SQLException if a database error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2848 * @see #getImportedKeys |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
2849 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2850 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2851 public ResultSet getCrossReference( |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
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|
2852 final String pcatalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
changeset
|
2853 final String pschema, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
changeset
|
2854 final String ptable, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
changeset
|
2855 final String fcatalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
changeset
|
2856 final String fschema, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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diff
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|
2857 final String ftable |
|
0
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diff
changeset
|
2858 ) throws SQLException |
|
a5a898f6886c
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|
2859 { |
|
295
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|
2860 final StringBuilder query = new StringBuilder(keyQuery.length() + 350); |
|
0
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diff
changeset
|
2861 query.append(keyQuery); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2862 |
|
216
116b5a149fb4
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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215
diff
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|
2863 if ((pcatalog != null && !pcatalog.isEmpty()) |
|
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
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|
2864 || (fcatalog != null && !fcatalog.isEmpty())) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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298
diff
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|
2865 // non-empty catalog selection. |
|
0
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parents:
diff
changeset
|
2866 // as we do not support catalogs this always results in no rows returned |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
350
diff
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|
2867 query.append(" AND 1=0"); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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215
diff
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|
2868 } else { |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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306
diff
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|
2869 if (pschema != null && !pschema.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
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|
2870 query.append(" AND pkschema.\"name\" ").append(composeMatchPart(pschema)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
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|
2871 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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306
diff
changeset
|
2872 if (ptable != null && !ptable.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
2873 query.append(" AND pktable.\"name\" ").append(composeMatchPart(ptable)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
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|
2874 } |
|
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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215
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|
2875 |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
2876 if (fschema != null && !fschema.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
2877 query.append(" AND fkschema.\"name\" ").append(composeMatchPart(fschema)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2878 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
2879 if (ftable != null && !ftable.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
2880 query.append(" AND fktable.\"name\" ").append(composeMatchPart(ftable)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
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|
2881 } |
|
0
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changeset
|
2882 } |
|
a5a898f6886c
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changeset
|
2883 |
|
a5a898f6886c
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parents:
diff
changeset
|
2884 query.append(" ORDER BY \"FKTABLE_SCHEM\", \"FKTABLE_NAME\", \"FK_NAME\", \"KEY_SEQ\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
2885 |
|
a5a898f6886c
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parents:
diff
changeset
|
2886 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2887 } |
|
a5a898f6886c
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changeset
|
2888 |
|
a5a898f6886c
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parents:
diff
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|
2889 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2890 * Get a description of all the SQL data types supported by |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2891 * this database. They are ordered by DATA_TYPE and then by how |
|
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parents:
diff
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|
2892 * closely the data type maps to the corresponding JDBC SQL type. |
|
a5a898f6886c
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parents:
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|
2893 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2894 * If the database supports SQL distinct types, then getTypeInfo() will |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2895 * return a single row with a TYPE_NAME of DISTINCT and a DATA_TYPE of Types.DISTINCT. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2896 * If the database supports SQL structured types, then getTypeInfo() will |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2897 * return a single row with a TYPE_NAME of STRUCT and a DATA_TYPE of Types.STRUCT. |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2898 * If SQL distinct or structured types are supported, then information on |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2899 * the individual types may be obtained from the getUDTs() method. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2900 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2901 * <P>Each type description has the following columns: |
|
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|
2902 * <OL> |
|
194
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|
2903 * <LI><B>TYPE_NAME</B> String => Type name |
|
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|
2904 * <LI><B>DATA_TYPE</B> int => SQL data type from java.sql.Types |
|
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|
2905 * <LI><B>PRECISION</B> int => maximum precision |
|
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|
2906 * <LI><B>LITERAL_PREFIX</B> String => prefix used to quote a literal (may be null) |
|
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|
2907 * <LI><B>LITERAL_SUFFIX</B> String => suffix used to quote a literal (may be null) |
|
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2908 * <LI><B>CREATE_PARAMS</B> String => parameters used in creating |
|
0
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|
2909 * the type (may be null) |
|
194
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2910 * <LI><B>NULLABLE</B> short => can you use NULL for this type? |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2911 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2912 * <LI> typeNoNulls - does not allow NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2913 * <LI> typeNullable - allows NULL values |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2914 * <LI> typeNullableUnknown - nullability unknown |
|
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parents:
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|
2915 * </UL> |
|
194
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2916 * <LI><B>CASE_SENSITIVE</B> boolean=> is it case sensitive? |
|
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2917 * <LI><B>SEARCHABLE</B> short => can you use "WHERE" based on this type: |
|
0
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parents:
diff
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|
2918 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2919 * <LI> typePredNone - No support |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2920 * <LI> typePredChar - Only supported with WHERE .. LIKE |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2921 * <LI> typePredBasic - Supported except for WHERE .. LIKE |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2922 * <LI> typeSearchable - Supported for all WHERE .. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2923 * </UL> |
|
194
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2924 * <LI><B>UNSIGNED_ATTRIBUTE</B> boolean => is it unsigned? |
|
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|
2925 * <LI><B>FIXED_PREC_SCALE</B> boolean => can it be a money value? |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2926 * <LI><B>AUTO_INCREMENT</B> boolean => can it be used for an |
|
0
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|
2927 * auto-increment value? |
|
194
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|
2928 * <LI><B>LOCAL_TYPE_NAME</B> String => localized version of type name |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2929 * (may be null) |
|
194
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2930 * <LI><B>MINIMUM_SCALE</B> short => minimum scale supported |
|
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|
2931 * <LI><B>MAXIMUM_SCALE</B> short => maximum scale supported |
|
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|
2932 * <LI><B>SQL_DATA_TYPE</B> int => unused |
|
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|
2933 * <LI><B>SQL_DATETIME_SUB</B> int => unused |
|
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|
2934 * <LI><B>NUM_PREC_RADIX</B> int => usually 2 or 10 |
|
0
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parents:
diff
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|
2935 * </OL> |
|
a5a898f6886c
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parents:
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|
2936 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2937 * @return ResultSet each row is a SQL type description |
|
194
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2938 * @throws SQLException if a database error occurs |
|
0
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parents:
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|
2939 */ |
|
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|
2940 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2941 public ResultSet getTypeInfo() throws SQLException { |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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diff
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|
2942 final StringBuilder query = new StringBuilder(2300); |
|
0
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diff
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|
2943 query.append("SELECT \"sqlname\" AS \"TYPE_NAME\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2944 "cast(").append(MonetDriver.getSQLTypeMap("\"sqlname\"")).append(" AS int) AS \"DATA_TYPE\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2945 "\"digits\" AS \"PRECISION\", " + // note that when radix is 2 the precision shows the number of bits |
|
375
a229ac4e275c
Corrected MonetDatabaseMetaData.getTypeInfo()
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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372
diff
changeset
|
2946 "cast(CASE WHEN \"sqlname\" IN ('char','varchar') THEN ''''" + |
|
a229ac4e275c
Corrected MonetDatabaseMetaData.getTypeInfo()
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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372
diff
changeset
|
2947 " WHEN \"sqlname\" IN ('clob','inet','json','url','uuid','blob','sqlblob') THEN \"sqlname\"||' '''" + |
|
a229ac4e275c
Corrected MonetDatabaseMetaData.getTypeInfo()
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
372
diff
changeset
|
2948 " ELSE NULL END AS varchar(9)) AS \"LITERAL_PREFIX\", " + |
|
265
177f3d1a791d
Corrected MonetDatabaseMetaData method getTypeInfo() for result column
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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264
diff
changeset
|
2949 "cast(CASE WHEN \"systemname\" IN ('str','inet','json','url','uuid','blob','sqlblob') THEN ''''" + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2950 " ELSE NULL END AS varchar(2)) AS \"LITERAL_SUFFIX\", " + |
|
379
d7661075ebf7
Add support for new (as of Oct2020 release) datatype: day_interval
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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376
diff
changeset
|
2951 "CASE WHEN \"sqlname\" IN ('char','varchar') THEN 'max length'" + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2952 " WHEN \"sqlname\" = 'decimal' THEN 'precision, scale'" + |
|
379
d7661075ebf7
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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376
diff
changeset
|
2953 " WHEN \"sqlname\" IN ('time','timetz','timestamp','timestamptz','sec_interval') THEN 'precision'" + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2954 " ELSE NULL END AS \"CREATE_PARAMS\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2955 "cast(CASE WHEN \"systemname\" = 'oid' THEN ").append(DatabaseMetaData.typeNoNulls) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
2956 .append(" ELSE ").append(DatabaseMetaData.typeNullable).append(" END AS smallint) AS \"NULLABLE\", " + |
|
265
177f3d1a791d
Corrected MonetDatabaseMetaData method getTypeInfo() for result column
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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264
diff
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|
2957 "CASE WHEN \"systemname\" IN ('str','json','url') THEN true ELSE false END AS \"CASE_SENSITIVE\", " + |
|
375
a229ac4e275c
Corrected MonetDatabaseMetaData.getTypeInfo()
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
372
diff
changeset
|
2958 "cast(CASE WHEN \"systemname\" IN ('str','inet','json','url','uuid') THEN ").append(DatabaseMetaData.typeSearchable) |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2959 .append(" ELSE ").append(DatabaseMetaData.typePredBasic).append(" END AS smallint) AS \"SEARCHABLE\", " + |
|
379
d7661075ebf7
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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376
diff
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|
2960 "CASE WHEN \"sqlname\" IN ('tinyint','smallint','int','bigint','hugeint','decimal','real','double','day_interval','month_interval','sec_interval') THEN false ELSE true END AS \"UNSIGNED_ATTRIBUTE\", " + |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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|
2961 "CASE \"sqlname\" WHEN 'decimal' THEN true ELSE false END AS \"FIXED_PREC_SCALE\", " + |
|
375
a229ac4e275c
Corrected MonetDatabaseMetaData.getTypeInfo()
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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372
diff
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|
2962 "CASE WHEN \"sqlname\" IN ('tinyint','smallint','int','bigint') THEN true ELSE false END AS \"AUTO_INCREMENT\", " + |
|
0
a5a898f6886c
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|
2963 "\"systemname\" AS \"LOCAL_TYPE_NAME\", " + |
|
a5a898f6886c
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|
2964 "cast(0 AS smallint) AS \"MINIMUM_SCALE\", " + |
|
379
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2965 "cast(CASE WHEN \"sqlname\" = 'decimal' THEN (CASE \"systemname\" WHEN 'int' THEN 9 WHEN 'lng' THEN 18 WHEN 'sht' THEN 4 WHEN 'hge' THEN 38 WHEN 'bte' THEN 2 ELSE 0 END)" + |
|
d7661075ebf7
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
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|
2966 " WHEN \"sqlname\" IN ('time','timetz','timestamp','timestamptz','sec_interval') THEN 6 ELSE 0 END AS smallint) AS \"MAXIMUM_SCALE\", " + |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
2967 "cast(0 AS int) AS \"SQL_DATA_TYPE\", " + |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
2968 "cast(0 AS int) AS \"SQL_DATETIME_SUB\", " + |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
2969 "cast(\"radix\" as int) AS \"NUM_PREC_RADIX\" " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
2970 "FROM \"sys\".\"types\" " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2971 "ORDER BY \"DATA_TYPE\", \"sqlname\", \"id\""); |
|
a5a898f6886c
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|
2972 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
2973 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2974 } |
|
a5a898f6886c
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|
2975 |
|
a5a898f6886c
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diff
changeset
|
2976 /** |
|
a5a898f6886c
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changeset
|
2977 * Retrieves a description of the given table's indices and statistics. |
|
a5a898f6886c
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changeset
|
2978 * They are ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION. |
|
a5a898f6886c
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|
2979 * |
|
a5a898f6886c
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parents:
diff
changeset
|
2980 * <P>Each index column description has the following columns: |
|
a5a898f6886c
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|
2981 * <OL> |
|
194
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|
2982 * <LI><B>TABLE_CAT</B> String => table catalog (may be null) |
|
1296dbcc4958
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|
2983 * <LI><B>TABLE_SCHEM</B> String => table schema (may be null) |
|
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|
2984 * <LI><B>TABLE_NAME</B> String => table name |
|
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|
2985 * <LI><B>NON_UNIQUE</B> boolean => Can index values be non-unique? |
|
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|
2986 * false when TYPE is tableIndexStatistic |
|
194
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|
2987 * <LI><B>INDEX_QUALIFIER</B> String => index catalog (may be null); |
|
0
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|
2988 * null when TYPE is tableIndexStatistic |
|
194
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|
2989 * <LI><B>INDEX_NAME</B> String => index name; null when TYPE is |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
2990 * tableIndexStatistic |
|
194
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|
2991 * <LI><B>TYPE</B> short => index type: |
|
0
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parents:
diff
changeset
|
2992 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2993 * <LI> tableIndexStatistic - this identifies table statistics that are |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2994 * returned in conjuction with a table's index descriptions |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
2995 * <LI> tableIndexClustered - this is a clustered index |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
2996 * <LI> tableIndexHashed - this is a hashed index |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
2997 * <LI> tableIndexOther - this is some other style of index |
|
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|
2998 * </UL> |
|
194
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|
2999 * <LI><B>ORDINAL_POSITION</B> short => column sequence number |
|
0
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|
3000 * within index; zero when TYPE is tableIndexStatistic |
|
194
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|
3001 * <LI><B>COLUMN_NAME</B> String => column name; null when TYPE is |
|
0
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changeset
|
3002 * tableIndexStatistic |
|
194
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186
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|
3003 * <LI><B>ASC_OR_DESC</B> String => column sort sequence, "A" => ascending |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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|
3004 * "D" => descending, may be null if sort sequence is not supported; |
|
0
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|
3005 * null when TYPE is tableIndexStatistic |
|
194
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|
3006 * <LI><B>CARDINALITY</B> int => When TYPE is tableIndexStatisic then |
|
0
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parents:
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changeset
|
3007 * this is the number of rows in the table; otherwise it is the |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3008 * number of unique values in the index. |
|
194
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|
3009 * <LI><B>PAGES</B> int => When TYPE is tableIndexStatisic then |
|
0
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parents:
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changeset
|
3010 * this is the number of pages used for the table, otherwise it |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3011 * is the number of pages used for the current index. |
|
194
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Resolved javadoc many errors and warnings, such as:
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|
3012 * <LI><B>FILTER_CONDITION</B> String => Filter condition, if any. |
|
0
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parents:
diff
changeset
|
3013 * (may be null) |
|
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parents:
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changeset
|
3014 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3015 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3016 * @param catalog a catalog name; "" retrieves those without a catalog |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3017 * @param schema a schema name pattern; "" retrieves those without a schema |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3018 * @param table a table name |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
370
diff
changeset
|
3019 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3020 * @param unique when true, return only indices for unique values; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3021 * when false, return indices regardless of whether unique or not |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3022 * @param approximate when true, result is allowed to reflect approximate |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3023 * or out of data values; when false, results are requested to be |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3024 * accurate |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3025 * @return ResultSet each row is an index column description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3026 * @throws SQLException if a database occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3027 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3028 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3029 public ResultSet getIndexInfo( |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3030 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3031 final String schema, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3032 final String table, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3033 final boolean unique, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3034 final boolean approximate |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3035 ) throws SQLException |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3036 { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3037 String table_row_count = "0"; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3038 |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3039 if (!approximate |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3040 && schema != null && !schema.isEmpty() && !schema.contains("%") |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3041 && table != null && !table.isEmpty() && !table.contains("%")) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3042 // we need the exact cardinality for one specific fully qualified table |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3043 ResultSet count = null; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3044 try { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3045 count = executeMetaDataQuery("SELECT COUNT(*) FROM \"" + schema + "\".\"" + table + "\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3046 if (count != null && count.next()) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3047 String count_value = count.getString(1); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3048 if (count_value != null && !count_value.isEmpty()) |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3049 table_row_count = count_value; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3050 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3051 } catch (SQLException e) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3052 // ignore |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3053 } finally { |
|
300
8cc3b51d1984
Add a utility method to close objects ignoring any possible SQLExceptions thrown.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
299
diff
changeset
|
3054 MonetConnection.closeResultsetStatement(count, null); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3055 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3056 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3057 |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3058 final StringBuilder query = new StringBuilder(1250); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3059 query.append( |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3060 "SELECT cast(null AS char(1)) AS \"TABLE_CAT\", " + |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3061 "s.\"name\" AS \"TABLE_SCHEM\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3062 "t.\"name\" AS \"TABLE_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3063 "CASE WHEN k.\"name\" IS NULL THEN true ELSE false END AS \"NON_UNIQUE\", " + |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3064 "cast(null AS char(1)) AS \"INDEX_QUALIFIER\", " + |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3065 "i.\"name\" AS \"INDEX_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3066 "CASE i.\"type\" WHEN 0 THEN ").append(DatabaseMetaData.tableIndexHashed).append(" ELSE ").append(DatabaseMetaData.tableIndexOther).append(" END AS \"TYPE\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3067 "cast(o.\"nr\" +1 AS smallint) AS \"ORDINAL_POSITION\", "+ |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3068 "c.\"name\" AS \"COLUMN_NAME\", " + |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3069 "cast(null AS char(1)) AS \"ASC_OR_DESC\", " + // sort sequence currently not supported in keys or indexes in MonetDB |
|
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3070 "cast(").append(table_row_count).append(" AS int) AS \"CARDINALITY\", " + |
|
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3071 "cast(0 AS int) AS \"PAGES\", " + |
|
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3072 "cast(null AS char(1)) AS \"FILTER_CONDITION\" " + |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3073 "FROM \"sys\".\"idxs\" i " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3074 "JOIN \"sys\".\"tables\" t ON i.\"table_id\" = t.\"id\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3075 "JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3076 "JOIN \"sys\".\"objects\" o ON i.\"id\" = o.\"id\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3077 "JOIN \"sys\".\"columns\" c ON (t.\"id\" = c.\"table_id\" AND o.\"name\" = c.\"name\") " + |
|
372
159c628527c4
Optimize SQL query generation by eliminating "WHERE 1=1" conditions
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
371
diff
changeset
|
3078 "LEFT OUTER JOIN \"sys\".\"keys\" k ON (i.\"name\" = k.\"name\" AND i.\"table_id\" = k.\"table_id\" AND k.\"type\" IN (0,1)) "); // primary (0) and unique keys (1) only |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3079 |
|
216
116b5a149fb4
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3080 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
298
diff
changeset
|
3081 // non-empty catalog selection. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3082 // as we do not support catalogs this always results in no rows returned |
|
372
159c628527c4
Optimize SQL query generation by eliminating "WHERE 1=1" conditions
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
371
diff
changeset
|
3083 query.append("WHERE 1=0"); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3084 } else { |
|
372
159c628527c4
Optimize SQL query generation by eliminating "WHERE 1=1" conditions
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
371
diff
changeset
|
3085 boolean needWhere = true; |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
3086 if (schema != null && !schema.equals("%")) { |
|
372
159c628527c4
Optimize SQL query generation by eliminating "WHERE 1=1" conditions
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
371
diff
changeset
|
3087 query.append("WHERE s.\"name\" ").append(composeMatchPart(schema)); |
|
159c628527c4
Optimize SQL query generation by eliminating "WHERE 1=1" conditions
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
371
diff
changeset
|
3088 needWhere = false; |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3089 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
3090 if (table != null && !table.equals("%")) { |
|
372
159c628527c4
Optimize SQL query generation by eliminating "WHERE 1=1" conditions
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
371
diff
changeset
|
3091 query.append(needWhere ? "WHERE" : " AND") |
|
159c628527c4
Optimize SQL query generation by eliminating "WHERE 1=1" conditions
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
371
diff
changeset
|
3092 .append(" t.\"name\" ").append(composeMatchPart(table)); |
|
159c628527c4
Optimize SQL query generation by eliminating "WHERE 1=1" conditions
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
371
diff
changeset
|
3093 needWhere = false; |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3094 } |
|
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3095 if (unique) { |
|
372
159c628527c4
Optimize SQL query generation by eliminating "WHERE 1=1" conditions
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
371
diff
changeset
|
3096 query.append(needWhere ? "WHERE" : " AND") |
|
159c628527c4
Optimize SQL query generation by eliminating "WHERE 1=1" conditions
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
371
diff
changeset
|
3097 .append(" k.\"name\" IS NOT NULL"); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3098 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3099 } |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3100 |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3101 query.append(" ORDER BY \"NON_UNIQUE\", \"TYPE\", \"INDEX_NAME\", \"ORDINAL_POSITION\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3102 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3103 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3104 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3105 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3106 //== 1.2 methods (JDBC 2) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3107 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3108 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3109 * Does the database support the given result set type? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3110 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3111 * @param type - defined in java.sql.ResultSet |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3112 * @return true if so; false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3113 * @throws SQLException - if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3114 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3115 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3116 public boolean supportsResultSetType(final int type) throws SQLException { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3117 // The only type we don't support |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3118 return type != ResultSet.TYPE_SCROLL_SENSITIVE; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3119 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3120 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3121 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3122 * Does the database support the concurrency type in combination |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3123 * with the given result set type? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3124 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3125 * @param type - defined in java.sql.ResultSet |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3126 * @param concurrency - type defined in java.sql.ResultSet |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3127 * @return true if so; false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3128 * @throws SQLException - if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3129 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3130 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3131 public boolean supportsResultSetConcurrency(final int type, final int concurrency) |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3132 throws SQLException |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3133 { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3134 // These combinations are not supported! |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3135 if (type == ResultSet.TYPE_SCROLL_SENSITIVE) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3136 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3137 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3138 // We do only support Read Only ResultSets |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3139 if (concurrency != ResultSet.CONCUR_READ_ONLY) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3140 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3141 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3142 // Everything else we do (well, what's left of it :) ) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3143 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3144 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3145 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3146 /* lots of unsupported stuff... (no updatable ResultSet!) */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3147 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3148 public boolean ownUpdatesAreVisible(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3149 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3150 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3151 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3152 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3153 public boolean ownDeletesAreVisible(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3154 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3155 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3156 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3157 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3158 public boolean ownInsertsAreVisible(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3159 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3160 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3161 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3162 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3163 public boolean othersUpdatesAreVisible(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3164 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3165 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3166 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3167 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3168 public boolean othersDeletesAreVisible(final int i) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3169 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3170 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3171 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3172 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3173 public boolean othersInsertsAreVisible(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3174 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3175 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3176 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3177 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3178 public boolean updatesAreDetected(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3179 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3180 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3181 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3182 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3183 public boolean deletesAreDetected(final int i) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3184 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
3185 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3186 |
|
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|
3187 @Override |
|
295
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3188 public boolean insertsAreDetected(final int type) { |
|
0
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|
3189 return false; |
|
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parents:
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|
3190 } |
|
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parents:
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|
3191 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
3192 /** |
|
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|
3193 * Indicates whether the driver supports batch updates. |
|
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|
3194 */ |
|
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|
3195 @Override |
|
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|
3196 public boolean supportsBatchUpdates() { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3197 return true; |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
3198 } |
|
a5a898f6886c
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|
3199 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3200 /** |
|
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changeset
|
3201 * Retrieves a description of the user-defined types (UDTs) defined in a particular schema. |
|
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|
3202 * Schema-specific UDTs may have type JAVA_OBJECT, STRUCT, or DISTINCT. |
|
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|
3203 * Only types matching the catalog, schema, type name and type criteria are returned. |
|
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|
3204 * They are ordered by DATA_TYPE, TYPE_CAT, TYPE_SCHEM and TYPE_NAME. |
|
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|
3205 * The type name parameter may be a fully-qualified name. In this case, the catalog and schemaPattern parameters are ignored. |
|
a5a898f6886c
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parents:
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|
3206 * |
|
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|
3207 * Each type description has the following columns: |
|
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|
3208 * |
|
194
1296dbcc4958
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|
3209 * 1 TYPE_CAT String => the type's catalog (may be null) |
|
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|
3210 * 2 TYPE_SCHEM String => type's schema (may be null) |
|
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|
3211 * 3 TYPE_NAME String => type name |
|
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|
3212 * 4 CLASS_NAME String => Java class name |
|
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|
3213 * 5 DATA_TYPE int => type value defined in java.sql.Types. One of JAVA_OBJECT, STRUCT, or DISTINCT |
|
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|
3214 * 6 REMARKS String => explanatory comment on the type |
|
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|
3215 * 7 BASE_TYPE short => type code of the source type of a DISTINCT type or the type that implements the |
|
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changeset
|
3216 * user-generated reference type of the SELF_REFERENCING_COLUMN of a structured type as defined |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3217 * in java.sql.Types (null if DATA_TYPE is not DISTINCT or not STRUCT with REFERENCE_GENERATION = USER_DEFINED) |
|
a5a898f6886c
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|
3218 * |
|
194
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|
3219 * @throws SQLException - if a database access error occurs |
|
0
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|
3220 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3221 @Override |
|
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|
3222 public ResultSet getUDTs( |
|
295
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|
3223 final String catalog, |
|
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Add "final" keyword to method arguments and local variables where possible.
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|
3224 final String schemaPattern, |
|
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Add "final" keyword to method arguments and local variables where possible.
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|
3225 final String typeNamePattern, |
|
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Add "final" keyword to method arguments and local variables where possible.
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|
3226 final int[] types |
|
0
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|
3227 ) throws SQLException |
|
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|
3228 { |
|
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|
3229 final StringBuilder query = new StringBuilder(990); |
|
0
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changeset
|
3230 if (types != null && types.length > 0) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3231 query.append("SELECT * FROM ("); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
3232 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3233 query.append("SELECT cast(null as char(1)) AS \"TYPE_CAT\", " + |
|
302
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
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|
3234 "s.\"name\" AS \"TYPE_SCHEM\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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300
diff
changeset
|
3235 "t.\"sqlname\" AS \"TYPE_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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300
diff
changeset
|
3236 "CASE t.\"sqlname\"" + |
|
215
71b039bc2d99
Added support for querying the sys.comments table for some meta data methods
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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213
diff
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|
3237 // next 4 UDTs are standard |
|
0
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parents:
diff
changeset
|
3238 " WHEN 'inet' THEN 'nl.cwi.monetdb.jdbc.types.INET'" + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3239 " WHEN 'json' THEN 'java.lang.String'" + |
|
331
6ed8f5b1f9ed
Corrected method DatabaseMetaData.getBestRowIdentifier(). It used to return columns of both primary key and unique constraints. Now it only returns the columns of the primary key if it has one, else columns of a unique constraint.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
323
diff
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|
3240 " WHEN 'url' THEN 'nl.cwi.monetdb.jdbc.types.URL'" + |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3241 " WHEN 'uuid' THEN 'java.lang.String'" + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
3242 " ELSE 'java.lang.Object' END AS \"CLASS_NAME\", " + |
|
302
1b6c514106ce
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300
diff
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|
3243 "cast(CASE WHEN t.\"sqlname\" IN ('inet', 'json', 'url', 'uuid') THEN ").append(Types.JAVA_OBJECT) |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3244 .append(" ELSE ").append(Types.STRUCT).append(" END AS int) AS \"DATA_TYPE\", " + |
|
302
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Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
3245 "t.\"systemname\" AS \"REMARKS\", " + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3246 "cast(null as smallint) AS \"BASE_TYPE\" " + |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
3247 "FROM \"sys\".\"types\" t " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
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|
3248 "JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" " + |
|
215
71b039bc2d99
Added support for querying the sys.comments table for some meta data methods
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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213
diff
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|
3249 // exclude the built-in types (I assume they always have id <= 99 and eclass < 15) |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
3250 "WHERE t.\"id\" > 99 AND t.\"eclass\" >= 15"); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
3251 |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
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|
3252 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
298
diff
changeset
|
3253 // non-empty catalog selection. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3254 // as we do not support catalogs this always results in no rows returned |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
350
diff
changeset
|
3255 query.append(" AND 1=0"); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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215
diff
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|
3256 } else { |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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306
diff
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|
3257 if (schemaPattern != null && !schemaPattern.equals("%")) { |
|
302
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
3258 query.append(" AND s.\"name\" ").append(composeMatchPart(schemaPattern)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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215
diff
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|
3259 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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306
diff
changeset
|
3260 if (typeNamePattern != null && !typeNamePattern.equals("%")) { |
|
302
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
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|
3261 query.append(" AND t.\"sqlname\" ").append(composeMatchPart(typeNamePattern)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
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215
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|
3262 } |
|
0
a5a898f6886c
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diff
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|
3263 } |
|
215
71b039bc2d99
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213
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|
3264 |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3265 if (types != null && types.length > 0) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3266 query.append(") AS getUDTs WHERE \"DATA_TYPE\" IN ("); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
3267 for (int i = 0; i < types.length; i++) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3268 if (i > 0) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3269 query.append(", "); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3270 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3271 query.append(types[i]); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3272 } |
|
a5a898f6886c
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diff
changeset
|
3273 query.append(")"); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3274 } |
|
216
116b5a149fb4
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|
3275 |
|
0
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diff
changeset
|
3276 query.append(" ORDER BY \"DATA_TYPE\", \"TYPE_SCHEM\", \"TYPE_NAME\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
3277 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3278 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3279 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3280 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3281 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3282 * Retrieves the connection that produced this metadata object. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3283 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3284 * @return the connection that produced this metadata object |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3285 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3286 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3287 public Connection getConnection() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3288 return con; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3289 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3290 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3291 /* I don't find these in the spec!?! */ |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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294
diff
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|
3292 public boolean rowChangesAreDetected(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3293 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3294 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
3295 |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
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diff
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|
3296 public boolean rowChangesAreVisible(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3297 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3298 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3299 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3300 //== 1.4 methods (JDBC 3) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3301 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3302 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3303 * Retrieves whether this database supports savepoints. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3304 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3305 * @return <code>true</code> if savepoints are supported; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3306 * <code>false</code> otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3307 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3308 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3309 public boolean supportsSavepoints() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3310 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3311 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3312 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3313 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3314 * Retrieves whether this database supports named parameters to callable |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3315 * statements. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3316 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3317 * @return <code>true</code> if named parameters are supported; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3318 * <code>false</code> otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3319 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3320 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3321 public boolean supportsNamedParameters() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3322 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3323 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3324 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3325 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3326 * Retrieves whether it is possible to have multiple <code>ResultSet</code> objects |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3327 * returned from a <code>CallableStatement</code> object |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3328 * simultaneously. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3329 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3330 * @return <code>true</code> if a <code>CallableStatement</code> object |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3331 * can return multiple <code>ResultSet</code> objects |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3332 * simultaneously; <code>false</code> otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3333 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3334 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3335 public boolean supportsMultipleOpenResults() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3336 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3337 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3338 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3339 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3340 * Retrieves whether auto-generated keys can be retrieved after |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3341 * a statement has been executed. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3342 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3343 * @return <code>true</code> if auto-generated keys can be retrieved |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3344 * after a statement has executed; <code>false</code> otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3345 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3346 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3347 public boolean supportsGetGeneratedKeys() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3348 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3349 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3350 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3351 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3352 * Retrieves a description of the user-defined type (UDT) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3353 * hierarchies defined in a particular schema in this database. Only |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3354 * the immediate super type/ sub type relationship is modeled. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3355 * <P> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3356 * Only supertype information for UDTs matching the catalog, |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3357 * schema, and type name is returned. The type name parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3358 * may be a fully-qualified name. When the UDT name supplied is a |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3359 * fully-qualified name, the catalog and schemaPattern parameters are |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3360 * ignored. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3361 * <P> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3362 * If a UDT does not have a direct super type, it is not listed here. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3363 * A row of the <code>ResultSet</code> object returned by this method |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3364 * describes the designated UDT and a direct supertype. A row has the following |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3365 * columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3366 * <OL> |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3367 * <LI><B>TYPE_CAT</B> String => the UDT's catalog (may be <code>null</code>) |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3368 * <LI><B>TYPE_SCHEM</B> String => UDT's schema (may be <code>null</code>) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
diff
changeset
|
3369 * <LI><B>TYPE_NAME</B> String => type name of the UDT |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
diff
changeset
|
3370 * <LI><B>SUPERTYPE_CAT</B> String => the direct super type's catalog |
|
0
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|
3371 * (may be <code>null</code>) |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
changeset
|
3372 * <LI><B>SUPERTYPE_SCHEM</B> String => the direct super type's schema |
|
0
a5a898f6886c
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diff
changeset
|
3373 * (may be <code>null</code>) |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3374 * <LI><B>SUPERTYPE_NAME</B> String => the direct super type's name |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3375 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3376 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3377 * <P><B>Note:</B> If the driver does not support type hierarchies, an |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3378 * empty result set is returned. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3379 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3380 * @param catalog a catalog name; "" retrieves those without a catalog; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3381 * <code>null</code> means drop catalog name from the selection criteria |
|
245
55375d489024
Corrected return values of DatabaseMetaData methods allTablesAreSelectable() and allProceduresAreCallable().
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
231
diff
changeset
|
3382 * @param schemaPattern a schema name pattern; "" retrieves those without a schema |
|
55375d489024
Corrected return values of DatabaseMetaData methods allTablesAreSelectable() and allProceduresAreCallable().
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
231
diff
changeset
|
3383 * @param typeNamePattern a UDT name pattern; may be a fully-qualified name |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3384 * @return a <code>ResultSet</code> object in which a row gives information |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3385 * about the designated UDT |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3386 * @throws SQLException if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3387 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3388 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3389 public ResultSet getSuperTypes( |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3390 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3391 final String schemaPattern, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
3392 final String typeNamePattern |
|
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parents:
diff
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|
3393 ) throws SQLException |
|
a5a898f6886c
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|
3394 { |
|
295
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Add "final" keyword to method arguments and local variables where possible.
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|
3395 final String query = |
|
0
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parents:
diff
changeset
|
3396 "SELECT cast(null as char(1)) AS \"TYPE_CAT\", '' AS \"TYPE_SCHEM\", '' AS \"TYPE_NAME\", " + |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3397 "cast(null as char(1)) AS \"SUPERTYPE_CAT\", '' AS \"SUPERTYPE_SCHEM\", '' AS \"SUPERTYPE_NAME\" " + |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
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diff
changeset
|
3398 "WHERE 1=0"; |
|
0
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parents:
diff
changeset
|
3399 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3400 return executeMetaDataQuery(query); |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3401 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3402 |
|
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parents:
diff
changeset
|
3403 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3404 * Retrieves a description of the table hierarchies defined in a particular |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3405 * schema in this database. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
3406 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3407 * <P>Only supertable information for tables matching the catalog, schema |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3408 * and table name are returned. The table name parameter may be a fully- |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3409 * qualified name, in which case, the catalog and schemaPattern parameters |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3410 * are ignored. If a table does not have a super table, it is not listed here. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3411 * Supertables have to be defined in the same catalog and schema as the |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3412 * sub tables. Therefore, the type description does not need to include |
|
a5a898f6886c
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parents:
diff
changeset
|
3413 * this information for the supertable. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3414 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3415 * <P>Each type description has the following columns: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
3416 * <OL> |
|
194
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|
3417 * <LI><B>TABLE_CAT</B> String => the type's catalog (may be <code>null</code>) |
|
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Resolved javadoc many errors and warnings, such as:
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|
3418 * <LI><B>TABLE_SCHEM</B> String => type's schema (may be <code>null</code>) |
|
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186
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|
3419 * <LI><B>TABLE_NAME</B> String => type name |
|
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|
3420 * <LI><B>SUPERTABLE_NAME</B> String => the direct super type's name |
|
0
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parents:
diff
changeset
|
3421 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3422 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3423 * <P><B>Note:</B> If the driver does not support type hierarchies, an |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3424 * empty result set is returned. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3425 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3426 * @param catalog a catalog name; "" retrieves those without a catalog; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3427 * <code>null</code> means drop catalog name from the selection criteria |
|
245
55375d489024
Corrected return values of DatabaseMetaData methods allTablesAreSelectable() and allProceduresAreCallable().
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
231
diff
changeset
|
3428 * @param schemaPattern a schema name pattern; "" retrieves those without a schema |
|
55375d489024
Corrected return values of DatabaseMetaData methods allTablesAreSelectable() and allProceduresAreCallable().
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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231
diff
changeset
|
3429 * @param tableNamePattern a table name pattern; may be a fully-qualified name |
|
0
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parents:
diff
changeset
|
3430 * @return a <code>ResultSet</code> object in which each row is a type description |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3431 * @throws SQLException if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3432 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3433 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
3434 public ResultSet getSuperTables( |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
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|
3435 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
changeset
|
3436 final String schemaPattern, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
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|
3437 final String tableNamePattern |
|
0
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parents:
diff
changeset
|
3438 ) throws SQLException |
|
a5a898f6886c
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changeset
|
3439 { |
|
295
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|
3440 final String query = |
|
0
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parents:
diff
changeset
|
3441 "SELECT cast(null as char(1)) AS \"TABLE_CAT\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3442 "'' AS \"TABLE_SCHEM\", '' AS \"TABLE_NAME\", '' AS \"SUPERTABLE_NAME\" " + |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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350
diff
changeset
|
3443 "WHERE 1=0"; |
|
0
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parents:
diff
changeset
|
3444 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3445 return executeMetaDataQuery(query); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3446 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3447 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3448 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3449 * Retrieves a description of the given attribute of the given type |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3450 * for a user-defined type (UDT) that is available in the given schema |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3451 * and catalog. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3452 * <P> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3453 * Descriptions are returned only for attributes of UDTs matching the |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3454 * catalog, schema, type, and attribute name criteria. They are ordered by |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3455 * TYPE_SCHEM, TYPE_NAME and ORDINAL_POSITION. This description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3456 * does not contain inherited attributes. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3457 * <P> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3458 * The <code>ResultSet</code> object that is returned has the following |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3459 * columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3460 * <OL> |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3461 * <LI><B>TYPE_CAT</B> String => type catalog (may be <code>null</code>) |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3462 * <LI><B>TYPE_SCHEM</B> String => type schema (may be <code>null</code>) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3463 * <LI><B>TYPE_NAME</B> String => type name |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3464 * <LI><B>ATTR_NAME</B> String => attribute name |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3465 * <LI><B>DATA_TYPE</B> int => attribute type SQL type from java.sql.Types |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3466 * <LI><B>ATTR_TYPE_NAME</B> String => Data source dependent type name. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3467 * For a UDT, the type name is fully qualified. For a REF, the type name is |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3468 * fully qualified and represents the target type of the reference type. |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3469 * <LI><B>ATTR_SIZE</B> int => column size. For char or date |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3470 * types this is the maximum number of characters; for numeric or |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3471 * decimal types this is precision. |
|
194
1296dbcc4958
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186
diff
changeset
|
3472 * <LI><B>DECIMAL_DIGITS</B> int => the number of fractional digits |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3473 * <LI><B>NUM_PREC_RADIX</B> int => Radix (typically either 10 or 2) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3474 * <LI><B>NULLABLE</B> int => whether NULL is allowed |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3475 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3476 * <LI> attributeNoNulls - might not allow NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3477 * <LI> attributeNullable - definitely allows NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3478 * <LI> attributeNullableUnknown - nullability unknown |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
3479 * </UL> |
|
194
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diff
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|
3480 * <LI><B>REMARKS</B> String => comment describing column (may be <code>null</code>) |
|
1296dbcc4958
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186
diff
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|
3481 * <LI><B>ATTR_DEF</B> String => default value (may be <code>null</code>) |
|
1296dbcc4958
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diff
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|
3482 * <LI><B>SQL_DATA_TYPE</B> int => unused |
|
1296dbcc4958
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diff
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|
3483 * <LI><B>SQL_DATETIME_SUB</B> int => unused |
|
1296dbcc4958
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186
diff
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|
3484 * <LI><B>CHAR_OCTET_LENGTH</B> int => for char types the |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
3485 * maximum number of bytes in the column |
|
194
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diff
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|
3486 * <LI><B>ORDINAL_POSITION</B> int => index of column in table |
|
0
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parents:
diff
changeset
|
3487 * (starting at 1) |
|
194
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|
3488 * <LI><B>IS_NULLABLE</B> String => "NO" means column definitely |
|
0
a5a898f6886c
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parents:
diff
changeset
|
3489 * does not allow NULL values; "YES" means the column might |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
3490 * allow NULL values. An empty string means unknown. |
|
194
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|
3491 * <LI><B>SCOPE_CATALOG</B> String => catalog of table that is the |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3492 * scope of a reference attribute (<code>null</code> if DATA_TYPE isn't REF) |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
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|
3493 * <LI><B>SCOPE_SCHEMA</B> String => schema of table that is the |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3494 * scope of a reference attribute (<code>null</code> if DATA_TYPE isn't REF) |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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3495 * <LI><B>SCOPE_TABLE</B> String => table name that is the scope of a |
|
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parents:
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|
3496 * reference attribute (<code>null</code> if the DATA_TYPE isn't REF) |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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|
3497 * <LI><B>SOURCE_DATA_TYPE</B> short => source type of a distinct type or user-generated |
|
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parents:
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changeset
|
3498 * Ref type,SQL type from java.sql.Types (<code>null</code> if DATA_TYPE |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3499 * isn't DISTINCT or user-generated REF) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3500 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3501 * @param catalog a catalog name; must match the catalog name as it |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
3502 * is stored in the database; "" retrieves those without a catalog; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3503 * <code>null</code> means that the catalog name should not be used to narrow |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3504 * the search |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3505 * @param schemaPattern a schema name pattern; must match the schema name |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3506 * as it is stored in the database; "" retrieves those without a schema; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3507 * <code>null</code> means that the schema name should not be used to narrow |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3508 * the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3509 * @param typeNamePattern a type name pattern; must match the |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3510 * type name as it is stored in the database |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3511 * @param attributeNamePattern an attribute name pattern; must match the attribute |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3512 * name as it is declared in the database |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3513 * @return a <code>ResultSet</code> object in which each row is an |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3514 * attribute description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3515 * @throws SQLException if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3516 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3517 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3518 public ResultSet getAttributes( |
|
295
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Add "final" keyword to method arguments and local variables where possible.
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|
3519 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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diff
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|
3520 final String schemaPattern, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
3521 final String typeNamePattern, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
3522 final String attributeNamePattern |
|
0
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|
3523 ) throws SQLException |
|
a5a898f6886c
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|
3524 { |
|
295
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Add "final" keyword to method arguments and local variables where possible.
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|
3525 final String query = |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3526 "SELECT cast(null as char(1)) AS \"TYPE_CAT\", '' AS \"TYPE_SCHEM\", '' AS \"TYPE_NAME\", " + |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3527 "'' AS \"ATTR_NAME\", cast(0 as int) AS \"DATA_TYPE\", '' AS \"ATTR_TYPE_NAME\", cast(0 as int) AS \"ATTR_SIZE\", " + |
|
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3528 "cast(0 as int) AS \"DECIMAL_DIGITS\", cast(0 as int) AS \"NUM_PREC_RADIX\", cast(0 as int) AS \"NULLABLE\", " + |
|
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3529 "'' AS \"REMARKS\", '' AS \"ATTR_DEF\", cast(0 as int) AS \"SQL_DATA_TYPE\", " + |
|
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3530 "cast(0 as int) AS \"SQL_DATETIME_SUB\", cast(0 as int) AS \"CHAR_OCTET_LENGTH\", " + |
|
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3531 "cast(0 as int) AS \"ORDINAL_POSITION\", 'YES' AS \"IS_NULLABLE\", " + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3532 "'' AS \"SCOPE_CATALOG\", '' AS \"SCOPE_SCHEMA\", '' AS \"SCOPE_TABLE\", " + |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3533 "cast(0 as smallint) AS \"SOURCE_DATA_TYPE\" " + |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
350
diff
changeset
|
3534 "WHERE 1=0"; |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3535 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3536 return executeMetaDataQuery(query); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3537 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3538 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3539 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3540 * Retrieves whether this database supports the given result set holdability. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3541 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3542 * @param holdability one of the following constants: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3543 * <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3544 * <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3545 * @return <code>true</code> if so; <code>false</code> otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3546 * @see Connection |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3547 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3548 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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294
diff
changeset
|
3549 public boolean supportsResultSetHoldability(final int holdability) { |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3550 // we don't close ResultSets at commit; and we don't do updateable |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3551 // result sets, so comes closest to hold cursors over commit |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3552 return holdability == ResultSet.HOLD_CURSORS_OVER_COMMIT; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3553 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3554 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3555 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3556 * Retrieves the default holdability of this <code>ResultSet</code> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3557 * object. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3558 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3559 * @return the default holdability; either |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3560 * <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3561 * <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
3562 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3563 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3564 public int getResultSetHoldability() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3565 return ResultSet.HOLD_CURSORS_OVER_COMMIT; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3566 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3567 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3568 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3569 * Retrieves the major version number of the underlying database. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
3570 * |
|
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|
3571 * @return the underlying database's major version |
|
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diff
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|
3572 * @throws SQLException if a database access error occurs |
|
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changeset
|
3573 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3574 @Override |
|
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diff
changeset
|
3575 public int getDatabaseMajorVersion() throws SQLException { |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
changeset
|
3576 return con.getDatabaseMajorVersion(); |
|
0
a5a898f6886c
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changeset
|
3577 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3578 |
|
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changeset
|
3579 /** |
|
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diff
changeset
|
3580 * Retrieves the minor version number of the underlying database. |
|
a5a898f6886c
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changeset
|
3581 * |
|
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changeset
|
3582 * @return underlying database's minor version |
|
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changeset
|
3583 * @throws SQLException if a database access error occurs |
|
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changeset
|
3584 */ |
|
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changeset
|
3585 @Override |
|
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diff
changeset
|
3586 public int getDatabaseMinorVersion() throws SQLException { |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
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changeset
|
3587 return con.getDatabaseMinorVersion(); |
|
0
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changeset
|
3588 } |
|
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changeset
|
3589 |
|
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changeset
|
3590 /** |
|
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changeset
|
3591 * Retrieves the major JDBC version number for this driver. |
|
a5a898f6886c
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changeset
|
3592 * |
|
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changeset
|
3593 * @return JDBC version major number |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3594 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3595 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3596 public int getJDBCMajorVersion() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3597 return 4; // This class implements JDBC 4.1 (at least we try to) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3598 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3599 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3600 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3601 * Retrieves the minor JDBC version number for this driver. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3602 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3603 * @return JDBC version minor number |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3604 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3605 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3606 public int getJDBCMinorVersion() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3607 return 1; // This class implements JDBC 4.1 (at least we try to) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3608 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3609 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3610 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3611 * Indicates whether the SQLSTATEs returned by <code>SQLException.getSQLState</code> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3612 * is X/Open (now known as Open Group) SQL CLI or SQL:2003. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3613 * @return the type of SQLSTATEs, one of: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3614 * sqlStateXOpen or |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3615 * sqlStateSQL |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3616 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3617 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3618 public int getSQLStateType() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3619 // At least this driver conforms with SQLSTATE to the SQL:2003 standard |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3620 return DatabaseMetaData.sqlStateSQL; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3621 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3622 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3623 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3624 * Indicates whether updates made to a LOB are made on a copy or directly |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3625 * to the LOB. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3626 * @return <code>true</code> if updates are made to a copy of the LOB; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3627 * <code>false</code> if updates are made directly to the LOB |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3628 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3629 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3630 public boolean locatorsUpdateCopy() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3631 // not that we have it, but in a transaction it will be copy-on-write |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3632 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3633 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3634 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3635 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3636 * Retrieves whether this database supports statement pooling. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3637 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3638 * @return <code>true</code> is so; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3639 <code>false</code> otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3640 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3641 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3642 public boolean supportsStatementPooling() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3643 // For the moment, I don't think so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3644 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3645 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3646 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3647 //== 1.6 methods (JDBC 4) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3648 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3649 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3650 * Indicates whether or not this data source supports the SQL ROWID |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3651 * type, and if so the lifetime for which a RowId object remains |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3652 * valid. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3653 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3654 * @return ROWID_UNSUPPORTED for now |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3655 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3656 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3657 public RowIdLifetime getRowIdLifetime() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3658 // I believe we don't do rowids |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3659 return RowIdLifetime.ROWID_UNSUPPORTED; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3660 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3661 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3662 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3663 * Get the schema names available in this database. The results |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3664 * are ordered by schema name. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3665 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3666 * <P>The schema column is: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3667 * <OL> |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3668 * <LI><B>TABLE_SCHEM</B> String => schema name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3669 * <LI><B>TABLE_CATALOG</B> String => catalog name (may be null) |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3670 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3671 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3672 * @return ResultSet each row has a single String column that is a |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3673 * schema name |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3674 * @throws SQLException if a database error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3675 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3676 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3677 public ResultSet getSchemas() throws SQLException { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3678 return getSchemas(null, null); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3679 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3680 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3681 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3682 * Retrieves whether this database supports invoking user-defined or |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3683 * vendor functions using the stored procedure escape syntax. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3684 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3685 * @return true if so; false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3686 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3687 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3688 public boolean supportsStoredFunctionsUsingCallSyntax() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3689 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3690 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3691 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3692 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3693 * Retrieves whether a SQLException while autoCommit is true |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3694 * inidcates that all open ResultSets are closed, even ones that are |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3695 * holdable. When a SQLException occurs while autocommit is true, it |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3696 * is vendor specific whether the JDBC driver responds with a commit |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3697 * operation, a rollback operation, or by doing neither a commit nor |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3698 * a rollback. A potential result of this difference is in whether |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3699 * or not holdable ResultSets are closed. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3700 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3701 * @return true if so; false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3702 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3703 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3704 public boolean autoCommitFailureClosesAllResultSets() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3705 // The driver caches most of it, and as far as I knoww the |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3706 // server doesn't close outstanding result handles on commit |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3707 // failure either. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3708 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3709 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3710 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3711 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3712 * Retrieves a list of the client info properties that the driver |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
3713 * supports. The result set contains the following columns |
|
a5a898f6886c
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parents:
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|
3714 * |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
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|
3715 * 1. NAME String => The name of the client info property |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3716 * 2. MAX_LEN int => The maximum length of the value for the |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
3717 * property |
|
194
1296dbcc4958
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diff
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|
3718 * 3. DEFAULT_VALUE String => The default value of the |
|
0
a5a898f6886c
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parents:
diff
changeset
|
3719 * property |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
diff
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|
3720 * 4. DESCRIPTION String => A description of the |
|
0
a5a898f6886c
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parents:
diff
changeset
|
3721 * property. This will typically contain information as |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3722 * to where this property is stored in the database. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3723 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3724 * The ResultSet is sorted by the NAME column |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3725 * |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3726 * @return A ResultSet object; each row is a supported client info property |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3727 * @throws SQLException if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3728 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3729 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3730 public ResultSet getClientInfoProperties() throws SQLException { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3731 // for a list of connection properties see also MonetConnection.java constructor MonetConnection(Properties props) |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3732 final String query = |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3733 "SELECT 'host' AS \"NAME\", cast(1024 as int) AS \"MAX_LEN\", 'localhost' AS \"DEFAULT_VALUE\", 'DSN or IP-address of machine running MonetDB' AS \"DESCRIPTION\" UNION ALL " + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3734 "SELECT 'port', 5, '50000', 'communication port number of MonetDB server process' UNION ALL " + |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
3735 "SELECT 'user', 1024, '', 'user name to login to MonetDB server' UNION ALL " + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3736 "SELECT 'password', 128, '', 'password for user name to login to MonetDB server' UNION ALL " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3737 "SELECT 'language', 16, 'sql', 'language (sql or mal) used to parse commands in MonetDB server' UNION ALL " + |
|
46
5d4524c27902
Added missing database connection property to output of method getClientInfoProperties()
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
25
diff
changeset
|
3738 "SELECT 'database', 1024, 'demo', 'name of database. It matches the dbfarm subdirectory name' UNION ALL " + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3739 "SELECT 'debug', 5, 'false', 'boolean flag true or false' UNION ALL " + |
|
177
4959b85b981c
Extend DatabaseMetaData.getClientInfoProperties() with new property: treat_clob_as_varchar
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
168
diff
changeset
|
3740 "SELECT 'logfile', 1024, 'monet_######.log', 'name of logfile used when debug is enabled' UNION ALL " + |
|
363
34ce6e1b1be8
Remove support for deprecated MD5 encryption algorithm in MapiSocket.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
356
diff
changeset
|
3741 "SELECT 'hash', 128, '', 'hash methods list to use in server connection. Supported are SHA512, SHA384, SHA256 and SHA1' UNION ALL " + |
|
177
4959b85b981c
Extend DatabaseMetaData.getClientInfoProperties() with new property: treat_clob_as_varchar
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
168
diff
changeset
|
3742 "SELECT 'treat_blob_as_binary', 5, 'false', 'should blob columns be mapped to Types.VARBINARY instead of default Types.BLOB in ResultSets and PreparedStatements' UNION ALL " + |
|
4959b85b981c
Extend DatabaseMetaData.getClientInfoProperties() with new property: treat_clob_as_varchar
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
168
diff
changeset
|
3743 "SELECT 'treat_clob_as_varchar', 5, 'false', 'should clob columns be mapped to Types.VARCHAR instead of default Types.CLOB in ResultSets and PreparedStatements' UNION ALL " + |
|
53
6cc63d6cb224
Implemented fix as suggested in Bug 3973
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
46
diff
changeset
|
3744 "SELECT 'so_timeout', 10, '0', 'timeout (in milliseconds) of communication socket. 0 means no timeout is set' " + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3745 "ORDER BY \"NAME\""; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3746 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3747 return executeMetaDataQuery(query); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3748 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3749 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3750 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3751 * Retrieves a description of the system and user functions |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3752 * available in the given catalog. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3753 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3754 * Only system and user function descriptions matching the schema |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3755 * and function name criteria are returned. They are ordered by |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3756 * FUNCTION_CAT, FUNCTION_SCHEM, FUNCTION_NAME and SPECIFIC_ NAME. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3757 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3758 * Each function description has the the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3759 * |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3760 * 1. FUNCTION_CAT String => function catalog (may be null) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3761 * 2. FUNCTION_SCHEM String => function schema (may be null) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3762 * 3. FUNCTION_NAME String => function name. This is the |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3763 * name used to invoke the function |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3764 * 4. REMARKS String => explanatory comment on the function |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3765 * 5. FUNCTION_TYPE short => kind of function: |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3766 * * functionResultUnknown - Cannot determine if a return |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3767 * value or table will be returned |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3768 * * functionNoTable- Does not return a table |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3769 * * functionReturnsTable - Returns a table |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3770 * 6. SPECIFIC_NAME String => the name which uniquely identifies |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3771 * this function within its schema. This is a user specified, |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3772 * or DBMS generated, name that may be different then the |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3773 * FUNCTION_NAME for example with overload functions |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3774 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3775 * A user may not have permission to execute any of the functions |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3776 * that are returned by getFunctions. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3777 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3778 * @param catalog a catalog name; must match the catalog name as it |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3779 * is stored in the database; "" retrieves those without a |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3780 * catalog; null means that the catalog name should not be |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3781 * used to narrow the search |
|
a5a898f6886c
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parents:
diff
changeset
|
3782 * @param schemaPattern a schema name pattern; must match the schema |
|
a5a898f6886c
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parents:
diff
changeset
|
3783 * name as it is stored in the database; "" retrieves those |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3784 * without a schema; null means that the schema name should |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3785 * not be used to narrow the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3786 * @param functionNamePattern a function name pattern; must match |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3787 * the function name as it is stored in the database |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
370
diff
changeset
|
3788 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
a5a898f6886c
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parents:
diff
changeset
|
3789 * @return ResultSet - each row is a function description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3790 * @throws SQLException if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3791 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3792 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3793 public ResultSet getFunctions( |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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294
diff
changeset
|
3794 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3795 final String schemaPattern, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
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|
3796 final String functionNamePattern |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
changeset
|
3797 ) throws SQLException |
|
0
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parents:
diff
changeset
|
3798 { |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
3799 final boolean useCommentsTable = con.commentsTableExists(); |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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294
diff
changeset
|
3800 final StringBuilder query = new StringBuilder(800); |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3801 query.append("SELECT cast(null as char(1)) AS \"FUNCTION_CAT\", " + |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3802 "s.\"name\" AS \"FUNCTION_SCHEM\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3803 "f.\"name\" AS \"FUNCTION_NAME\", ") |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3804 .append(useCommentsTable ? "COALESCE(cm.\"remark\", cast(f.\"func\" as varchar(9999)))" : "cast(f.\"func\" as varchar(9999))").append(" AS \"REMARKS\", " + |
|
366
83bfade6333e
Optimise constructed SQL query for getFunctions().
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
365
diff
changeset
|
3805 "CASE WHEN f.\"type\" IN (1,2,3,4,6) THEN ").append(DatabaseMetaData.functionNoTable) |
|
83bfade6333e
Optimise constructed SQL query for getFunctions().
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
365
diff
changeset
|
3806 .append(" WHEN f.\"type\" IN (5,7) THEN ").append(DatabaseMetaData.functionReturnsTable) |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3807 .append(" ELSE ").append(DatabaseMetaData.functionResultUnknown).append(" END AS \"FUNCTION_TYPE\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3808 // only the id value uniquely identifies a function. Include it to be able to differentiate between multiple overloaded functions with the same name |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3809 "cast(f.\"id\" as varchar(10)) AS \"SPECIFIC_NAME\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3810 "FROM \"sys\".\"functions\" f " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3811 "JOIN \"sys\".\"schemas\" s ON f.\"schema_id\" = s.\"id\" "); |
|
215
71b039bc2d99
Added support for querying the sys.comments table for some meta data methods
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
213
diff
changeset
|
3812 if (useCommentsTable) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3813 query.append("LEFT OUTER JOIN \"sys\".\"comments\" cm ON (f.\"id\" = cm.\"id\") "); |
|
215
71b039bc2d99
Added support for querying the sys.comments table for some meta data methods
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
213
diff
changeset
|
3814 } |
|
71b039bc2d99
Added support for querying the sys.comments table for some meta data methods
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
213
diff
changeset
|
3815 // only functions, so exclude procedures (type = 2). Those will to be returned via getProcedures() |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3816 query.append("WHERE f.\"type\" <> 2"); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3817 |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3818 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
298
diff
changeset
|
3819 // non-empty catalog selection. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3820 // as we do not support catalogs this always results in no rows returned |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
350
diff
changeset
|
3821 query.append(" AND 1=0"); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3822 } else { |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
3823 if (schemaPattern != null && !schemaPattern.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3824 query.append(" AND s.\"name\" ").append(composeMatchPart(schemaPattern)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3825 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
3826 if (functionNamePattern != null && !functionNamePattern.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3827 query.append(" AND f.\"name\" ").append(composeMatchPart(functionNamePattern)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3828 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3829 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3830 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3831 query.append(" ORDER BY \"FUNCTION_SCHEM\", \"FUNCTION_NAME\", \"SPECIFIC_NAME\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3832 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3833 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3834 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3835 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3836 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3837 * Retrieves a description of the given catalog's system or user |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3838 * function parameters and return type. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3839 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3840 * Only descriptions matching the schema, function and parameter name criteria are returned. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3841 * They are ordered by FUNCTION_CAT, FUNCTION_SCHEM, FUNCTION_NAME and SPECIFIC_ NAME. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3842 * Within this, the return value, if any, is first. Next are the parameter descriptions in call order. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3843 * The column descriptions follow in column number order. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3844 * |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3845 * 1. FUNCTION_CAT String => function catalog (may be null) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3846 * 2. FUNCTION_SCHEM String => function schema (may be null) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3847 * 3. FUNCTION_NAME String => function name. This is the name used to invoke the function |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3848 * 4. COLUMN_NAME String => column/parameter name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3849 * 5. COLUMN_TYPE Short => kind of column/parameter: |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3850 * functionColumnUnknown - nobody knows |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3851 * functionColumnIn - IN parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3852 * functionColumnInOut - INOUT parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3853 * functionColumnOut - OUT parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3854 * functionColumnReturn - function return value |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3855 * functionColumnResult - Indicates that the parameter or column is a column in the ResultSet |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3856 * 6. DATA_TYPE int => SQL type from java.sql.Types |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3857 * 7. TYPE_NAME String => SQL type name, for a UDT type the type name is fully qualified |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3858 * 8. PRECISION int => precision |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3859 * 9. LENGTH int => length in bytes of data |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3860 * 10. SCALE short => scale - null is returned for data types where SCALE is not applicable. |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3861 * 11. RADIX short => radix |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3862 * 12. NULLABLE short => can it contain NULL. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3863 * functionNoNulls - does not allow NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3864 * functionNullable - allows NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3865 * functionNullableUnknown - nullability unknown |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3866 * 13. REMARKS String => comment describing column/parameter |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3867 * 14. CHAR_OCTET_LENGTH int => the maximum length of binary and character based parameters or columns. For any other datatype the returned value is a NULL |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3868 * 15. ORDINAL_POSITION int => the ordinal position, starting from 1, for the input and output parameters. |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
3869 * A value of 0 is returned if this row describes the function's return value. For result set columns, it is the ordinal position of the column in the result set starting from 1. |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3870 * 16. IS_NULLABLE String => ISO rules are used to determine the nullability for a parameter or column. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3871 * YES --- if the parameter or column can include NULLs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3872 * NO --- if the parameter or column cannot include NULLs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3873 * empty string --- if the nullability for the parameter or column is unknown |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3874 * 17. SPECIFIC_NAME String => the name which uniquely identifies this function within its schema. |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
3875 * This is a user specified, or DBMS generated, name that may be different then the FUNCTION_NAME for example with overload functions |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3876 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3877 * @param catalog a catalog name; must match the catalog name as |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3878 * it is stored in the database; "" retrieves those without a |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3879 * catalog; null means that the catalog name should not be |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3880 * used to narrow the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3881 * @param schemaPattern a schema name pattern; must match the schema |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3882 * name as it is stored in the database; "" retrieves those |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3883 * without a schema; null means that the schema name should |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3884 * not be used to narrow the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3885 * @param functionNamePattern a procedure name pattern; must match the |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3886 * function name as it is stored in the database |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
370
diff
changeset
|
3887 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3888 * @param columnNamePattern a parameter name pattern; must match the |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3889 * parameter or column name as it is stored in the database |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
370
diff
changeset
|
3890 * Note that our implementation allows this param to be null also (for efficiency as no extra LIKE '%' condition is added to be evaluated). |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3891 * @return ResultSet - each row describes a user function parameter, |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3892 * column or return type |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3893 * @throws SQLException - if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3894 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3895 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3896 public ResultSet getFunctionColumns( |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3897 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3898 final String schemaPattern, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
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|
3899 final String functionNamePattern, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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parents:
294
diff
changeset
|
3900 final String columnNamePattern |
|
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Add "final" keyword to method arguments and local variables where possible.
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294
diff
changeset
|
3901 ) throws SQLException |
|
0
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parents:
diff
changeset
|
3902 { |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3903 final StringBuilder query = new StringBuilder(2600); |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3904 query.append("SELECT cast(null as char(1)) AS \"FUNCTION_CAT\", " + |
|
302
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3905 "s.\"name\" AS \"FUNCTION_SCHEM\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3906 "f.\"name\" AS \"FUNCTION_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3907 "a.\"name\" AS \"COLUMN_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3908 "cast(CASE a.\"inout\"" + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3909 " WHEN 0 THEN (CASE a.\"number\" WHEN 0 THEN ") |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3910 .append(DatabaseMetaData.functionReturn).append(" ELSE ").append(DatabaseMetaData.functionColumnOut).append(" END)" + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3911 " WHEN 1 THEN ").append(DatabaseMetaData.functionColumnIn) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3912 .append(" ELSE ").append(DatabaseMetaData.functionColumnUnknown).append(" END AS smallint) AS \"COLUMN_TYPE\", " + |
|
302
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Added table aliases and use them in all meta data SQL queries to reduce query size.
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parents:
300
diff
changeset
|
3913 "cast(").append(MonetDriver.getSQLTypeMap("a.\"type\"")).append(" AS int) AS \"DATA_TYPE\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3914 "a.\"type\" AS \"TYPE_NAME\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3915 "CASE a.\"type\" WHEN 'tinyint' THEN 3 WHEN 'smallint' THEN 5 WHEN 'int' THEN 10 WHEN 'bigint' THEN 19" + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3916 " WHEN 'hugeint' THEN 38 WHEN 'oid' THEN 19 WHEN 'wrd' THEN 19 ELSE a.\"type_digits\" END AS \"PRECISION\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3917 "CASE a.\"type\" WHEN 'tinyint' THEN 1 WHEN 'smallint' THEN 2 WHEN 'int' THEN 4 WHEN 'bigint' THEN 8" + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3918 " WHEN 'hugeint' THEN 16 WHEN 'oid' THEN 8 WHEN 'wrd' THEN 8 ELSE a.\"type_digits\" END AS \"LENGTH\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3919 "cast(CASE WHEN a.\"type\" IN ('tinyint','smallint','int','bigint','hugeint','oid','wrd','decimal','numeric'," + |
|
379
d7661075ebf7
Add support for new (as of Oct2020 release) datatype: day_interval
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
376
diff
changeset
|
3920 "'time','timetz','timestamp','timestamptz','day_interval','month_interval','sec_interval') THEN a.\"type_scale\" ELSE NULL END AS smallint) AS \"SCALE\", " + |
|
302
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Added table aliases and use them in all meta data SQL queries to reduce query size.
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parents:
300
diff
changeset
|
3921 "cast(CASE WHEN a.\"type\" IN ('tinyint','smallint','int','bigint','hugeint','oid','wrd','decimal','numeric') THEN 10" + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3922 " WHEN a.\"type\" IN ('real','float','double') THEN 2 ELSE NULL END AS smallint) AS \"RADIX\", " + |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3923 "cast(").append(DatabaseMetaData.functionNullableUnknown).append(" AS smallint) AS \"NULLABLE\", " + |
|
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3924 "cast(null as char(1)) AS \"REMARKS\", " + |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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parents:
300
diff
changeset
|
3925 "cast(CASE WHEN a.\"type\" IN ('char','varchar','clob') THEN a.\"type_digits\" ELSE NULL END as int) AS \"CHAR_OCTET_LENGTH\", " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3926 "cast(a.\"number\" as int) AS \"ORDINAL_POSITION\", " + |
|
217
7cbd20ff628c
Removed DISTINCT from SELECT DISTINCT where it should not be needed (in getTables() and getFunctionColumns())
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
3927 "cast('' as varchar(3)) AS \"IS_NULLABLE\", " + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3928 // the specific name contains the function id, in order to be able to match the args to the correct overloaded function name |
|
302
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Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3929 "cast(f.\"id\" as varchar(10)) AS \"SPECIFIC_NAME\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3930 "FROM \"sys\".\"args\" a " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3931 "JOIN \"sys\".\"functions\" f ON a.\"func_id\" = f.\"id\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3932 "JOIN \"sys\".\"schemas\" s ON f.\"schema_id\" = s.\"id\" " + |
|
215
71b039bc2d99
Added support for querying the sys.comments table for some meta data methods
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
213
diff
changeset
|
3933 // only functions, so exclude procedures (type = 2). Those will to be returned via getProcedureColumns() |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3934 "WHERE f.\"type\" <> 2"); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3935 |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3936 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
298
diff
changeset
|
3937 // non-empty catalog selection. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3938 // as we do not support catalogs this always results in no rows returned |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
350
diff
changeset
|
3939 query.append(" AND 1=0"); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3940 } else { |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
3941 if (schemaPattern != null && !schemaPattern.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3942 query.append(" AND s.\"name\" ").append(composeMatchPart(schemaPattern)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3943 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
3944 if (functionNamePattern != null && !functionNamePattern.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3945 query.append(" AND f.\"name\" ").append(composeMatchPart(functionNamePattern)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3946 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
306
diff
changeset
|
3947 if (columnNamePattern != null && !columnNamePattern.equals("%")) { |
|
302
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3948 query.append(" AND a.\"name\" ").append(composeMatchPart(columnNamePattern)); |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3949 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3950 } |
|
216
116b5a149fb4
Optimise SQL query generation for cases where the WHERE clause already has a AND 1 = 0 condition. Exlude adding more AND ... conditions.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3951 |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3952 query.append(" ORDER BY \"FUNCTION_SCHEM\", \"FUNCTION_NAME\", \"SPECIFIC_NAME\", \"ORDINAL_POSITION\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3953 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3954 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3955 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3956 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3957 //== 1.7 methods (JDBC 4.1) |
|
372
159c628527c4
Optimize SQL query generation by eliminating "WHERE 1=1" conditions
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
371
diff
changeset
|
3958 |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3959 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3960 * Retrieves a description of the pseudo or hidden columns available |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3961 * in a given table within the specified catalog and schema. Pseudo |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3962 * or hidden columns may not always be stored within a table and are |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3963 * not visible in a ResultSet unless they are specified in the |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3964 * query's outermost SELECT list. Pseudo or hidden columns may not |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3965 * necessarily be able to be modified. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3966 * If there are no pseudo or hidden columns, an empty ResultSet is returned. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3967 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3968 * Only column descriptions matching the catalog, schema, table and column name criteria are returned. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3969 * They are ordered by TABLE_CAT,TABLE_SCHEM, TABLE_NAME and COLUMN_NAME. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3970 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3971 * Each column description has the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3972 * |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3973 * 1. TABLE_CAT String => table catalog (may be null) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3974 * 2. TABLE_SCHEM String => table schema (may be null) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3975 * 3. TABLE_NAME String => table name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3976 * 4. COLUMN_NAME String => column name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3977 * 5. DATA_TYPE int => SQL type from java.sql.Types |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3978 * 6. COLUMN_SIZE int => column size. |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3979 * 7. DECIMAL_DIGITS int => the number of fractional digits. Null is returned for data types where DECIMAL_DIGITS is not applicable. |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3980 * 8. NUM_PREC_RADIX int => Radix (typically either 10 or 2) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3981 * 9. COLUMN_USAGE String => The allowed usage for the column. The value returned will correspond to the enum name returned by PseudoColumnUsage.name() |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3982 * 10. REMARKS String => comment describing column (may be null) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3983 * 11. CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
diff
changeset
|
3984 * 12. IS_NULLABLE String => ISO rules are used to determine the nullability for a column. |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3985 * YES --- if the column can include NULLs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3986 * NO --- if the column cannot include NULLs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3987 * empty string --- if the nullability for the column is unknown |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3988 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
3989 * @param catalog a catalog name |
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|
3990 * @param schemaPattern a schema name pattern |
|
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|
3991 * @param tableNamePattern a table name pattern |
|
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|
3992 * @param columnNamePattern a column name pattern |
|
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|
3993 * @return ResultSet where each row is a column description |
|
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|
3994 * @throws SQLException if a database access error occurs |
|
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|
3995 */ |
|
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|
3996 @Override |
|
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|
3997 public ResultSet getPseudoColumns( |
|
295
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|
3998 final String catalog, |
|
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|
3999 final String schemaPattern, |
|
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|
4000 final String tableNamePattern, |
|
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|
4001 final String columnNamePattern |
|
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4002 ) throws SQLException |
|
0
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|
4003 { |
|
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|
4004 // MonetDB currently does not support pseudo or hidden columns, so return an empty ResultSet |
|
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|
4005 final String query = |
|
217
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|
4006 "SELECT cast(null as char(1)) AS \"TABLE_CAT\", " + |
|
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|
4007 "'' AS \"TABLE_SCHEM\", " + |
|
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|
4008 "'' AS \"TABLE_NAME\", " + |
|
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|
4009 "'' AS \"COLUMN_NAME\", " + |
|
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|
4010 "cast(0 as int) AS \"DATA_TYPE\", " + |
|
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|
4011 "cast(0 as int) AS \"COLUMN_SIZE\", " + |
|
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|
4012 "cast(0 as int) AS \"DECIMAL_DIGITS\", " + |
|
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|
4013 "cast(0 as int) AS \"NUM_PREC_RADIX\", " + |
|
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|
4014 "'' AS \"COLUMN_USAGE\", " + |
|
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|
4015 "'' AS \"REMARKS\", " + |
|
7cbd20ff628c
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|
4016 "cast(0 as int) AS \"CHAR_OCTET_LENGTH\", " + |
|
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|
4017 "'' AS \"IS_NULLABLE\" " + |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
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|
4018 "WHERE 1=0"; |
|
0
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4019 |
|
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|
4020 return executeMetaDataQuery(query); |
|
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|
4021 } |
|
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4022 |
|
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|
4023 /** |
|
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|
4024 * Retrieves whether a generated key will always be returned if the |
|
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|
4025 * column name(s) or index(es) specified for the auto generated key |
|
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|
4026 * column(s) are valid and the statement succeeds. The key that is |
|
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|
4027 * returned may or may not be based on the column(s) for the auto |
|
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|
4028 * generated key. |
|
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|
4029 * |
|
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|
4030 * @return true if so, false otherwise |
|
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|
4031 * @throws SQLException - if a database access error occurs |
|
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|
4032 */ |
|
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|
4033 @Override |
|
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|
4034 public boolean generatedKeyAlwaysReturned() throws SQLException { |
|
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|
4035 return true; |
|
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|
4036 } |
|
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|
4037 |
|
376
ffdc7b0e102d
Updated JDBC driver to comply with JDBC 4.2 interface now we compile for Java 8. This includes:
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|
4038 //== Java 1.8 methods (JDBC 4.2) |
|
264
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Implemented two new 1.8 methods (JDBC 4.2)
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|
4039 |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
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|
4040 /** |
|
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Implemented two new 1.8 methods (JDBC 4.2)
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|
4041 * Retrieves the maximum number of bytes this database allows for the logical size for a LOB. |
|
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Implemented two new 1.8 methods (JDBC 4.2)
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|
4042 * The default implementation will return 0 |
|
376
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|
4043 * @return the maximum number of bytes allowed; a result of zero means that there is no limit or the limit is not known |
|
264
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|
4044 */ |
|
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Implemented two new 1.8 methods (JDBC 4.2)
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|
4045 @Override |
|
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Implemented two new 1.8 methods (JDBC 4.2)
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|
4046 public long getMaxLogicalLobSize() { |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
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|
4047 return 0; |
|
d31b99f06b26
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|
4048 } |
|
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Implemented two new 1.8 methods (JDBC 4.2)
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|
4049 |
|
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Implemented two new 1.8 methods (JDBC 4.2)
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|
4050 /** |
|
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Implemented two new 1.8 methods (JDBC 4.2)
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263
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|
4051 * Retrieves whether this database supports REF CURSOR. |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
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263
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|
4052 * The default implementation will return false |
|
376
ffdc7b0e102d
Updated JDBC driver to comply with JDBC 4.2 interface now we compile for Java 8. This includes:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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375
diff
changeset
|
4053 * @return true if this database supports REF CURSOR; false otherwise |
|
264
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|
4054 */ |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
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263
diff
changeset
|
4055 @Override |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
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263
diff
changeset
|
4056 public boolean supportsRefCursors() { |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
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263
diff
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|
4057 return false; |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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263
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|
4058 } |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
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263
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|
4059 |
|
0
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diff
changeset
|
4060 //== end methods interface DatabaseMetaData |
|
303
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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302
diff
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|
4061 |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
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302
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|
4062 |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4063 //== internal helper methods which do not belong to the JDBC interface |
|
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4064 |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4065 /** |
|
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Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4066 * Internal utility method to create a Statement object, execute a query and return the ResulSet object which allows scrolling. |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4067 * As the Statement object is created internally (the caller does not see it and thus can not close it), |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4068 * we set it to close (and free server resources) when the ResultSet object is closed by the caller. |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4069 */ |
|
370
2ab474af487c
Add utility method to replace calls to x.replaceAll().replaceAll() in several places.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
366
diff
changeset
|
4070 private final ResultSet executeMetaDataQuery(final String query) throws SQLException { |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
4071 final Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4072 ResultSet rs = null; |
|
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331
diff
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|
4073 if (stmt != null) { |
|
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4074 // for debug: System.out.println("SQL (len " + query.length() + "): " + query); |
|
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Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
4075 rs = stmt.executeQuery(query); |
|
e8962bdaa206
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4076 if (rs != null) { |
|
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4077 /* we want the statement object to be closed also when the resultset is closed by the caller */ |
|
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331
diff
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|
4078 stmt.closeOnCompletion(); |
|
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331
diff
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|
4079 } else { |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4080 /* failed to produce a resultset, so release resources for created statement object now */ |
|
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331
diff
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|
4081 stmt.close(); |
|
e8962bdaa206
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331
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|
4082 } |
|
e8962bdaa206
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331
diff
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|
4083 } |
|
e8962bdaa206
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331
diff
changeset
|
4084 return rs; |
|
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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331
diff
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|
4085 } |
|
303
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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302
diff
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|
4086 |
|
a91168efdf27
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302
diff
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|
4087 /** |
|
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4088 * Returns a SQL match part string where depending on the input value we |
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4089 * compose an exact match (use =) or match with wildcards (use LIKE) or IS NULL |
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4090 * |
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4091 * @param in the string to match |
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4092 * @return the SQL match part string |
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4093 */ |
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4094 private final String composeMatchPart(final String in) { |
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4095 if (in == null) |
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4096 return "IS NULL"; |
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4097 |
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4098 String cmp = "= '"; |
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4099 // check if SQL wildcards are used in the input, if so use LIKE |
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4100 if (in.contains("%") || in.contains("_")) |
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4101 cmp = "LIKE '"; |
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4102 |
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4103 return cmp + con.escapeSpecialChars(in) + "'"; |
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4104 } |
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4105 |
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4106 /** |
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4107 * Returns the given string between two double quotes for usage as |
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4108 * exact column or table name in SQL queries. |
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4109 * |
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4110 * @param in the string to quote |
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4111 * @return the quoted string |
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4112 */ |
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4113 // @SuppressWarnings("unused") |
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4114 // private static final String dq(String in) { |
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4115 // return "\"" + in.replaceAll("\\\\", "\\\\\\\\").replaceAll("\"", "\\\\\"") + "\""; |
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4116 // } |
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4117 |
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4118 //== end helper methods |
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4119 } |