Mercurial > hg > monetdb-java
annotate src/main/java/nl/cwi/monetdb/jdbc/MonetDatabaseMetaData.java @ 375:a229ac4e275c
Corrected MonetDatabaseMetaData.getTypeInfo()
- The LITERAL_PREFIX column now includes the required casting name for types: clob, inet, json, url, uuid and blob.
- The SEARCHABLE column now returns typePredBasic instead of typeSearchable for type: blob.
- The AUTO_INCREMENT column now returns false for types: hugeint, decimal, oid and wrd.
| author | Martin van Dinther <martin.van.dinther@monetdbsolutions.com> |
|---|---|
| date | Wed, 23 Sep 2020 14:39:05 +0200 (2020-09-23) |
| parents | 159c628527c4 |
| children | ffdc7b0e102d |
| 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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23 * @author Fabian Groffen |
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24 * @author Martin van Dinther |
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25 * @version 0.9 |
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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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105 |
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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() { |
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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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parents:
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|
543 } |
|
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Sjoerd Mullender <sjoerd@acm.org>
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544 |
|
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parents:
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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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Copy of MonetDB java directory changeset e6e32756ad31.
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549 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
550 * @return true if so; false otherwise |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
551 */ |
|
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Sjoerd Mullender <sjoerd@acm.org>
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|
552 @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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|
553 public boolean supportsConvert(final int fromType, final int toType) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
554 switch (fromType) { |
|
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parents:
diff
changeset
|
555 case Types.BOOLEAN: |
|
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|
556 switch (toType) { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
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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Sjoerd Mullender <sjoerd@acm.org>
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|
559 case Types.TINYINT: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
560 case Types.SMALLINT: |
|
a5a898f6886c
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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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
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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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
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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changeset
|
572 /* case Types.BIT: is not supported by MonetDB and will fail */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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
changeset
|
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 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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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
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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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
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
581 case Types.BLOB: |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
582 case Types.VARCHAR: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
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>
parents:
diff
changeset
|
584 case Types.CLOB: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
585 return true; |
|
a5a898f6886c
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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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parents:
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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.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
593 case Types.FLOAT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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.
Sjoerd Mullender <sjoerd@acm.org>
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>
parents:
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changeset
|
601 case Types.TINYINT: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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>
parents:
diff
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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Copy of MonetDB java directory changeset e6e32756ad31.
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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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parents:
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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 } |
|
a5a898f6886c
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:
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changeset
|
618 case Types.CHAR: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
619 case Types.VARCHAR: |
|
a5a898f6886c
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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changeset
|
622 switch (toType) { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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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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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:
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changeset
|
627 case Types.INTEGER: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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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: |
|
a5a898f6886c
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>
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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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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: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
641 case Types.TIMESTAMP: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
642 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
643 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
644 // conversion to all other types is not supported |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
645 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
646 case Types.DATE: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
647 switch (toType) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
648 case Types.CHAR: |
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|
649 case Types.VARCHAR: |
|
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|
650 /* case Types.LONGVARCHAR: is not supported by MonetDB and will fail */ |
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651 case Types.CLOB: |
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652 case Types.DATE: |
|
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653 case Types.TIMESTAMP: |
|
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|
654 return true; |
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|
655 } |
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656 // conversion to all other types is not supported |
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657 return false; |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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658 case Types.TIME: |
|
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|
659 switch (toType) { |
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660 case Types.CHAR: |
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661 case Types.VARCHAR: |
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662 /* case Types.LONGVARCHAR: is not supported by MonetDB and will fail */ |
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663 case Types.CLOB: |
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664 case Types.TIME: |
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665 return true; |
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666 } |
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667 // conversion to all other types is not supported |
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|
668 return false; |
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669 case Types.TIMESTAMP: |
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670 switch (toType) { |
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671 case Types.CHAR: |
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672 case Types.VARCHAR: |
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|
673 /* case Types.LONGVARCHAR: is not supported by MonetDB and will fail */ |
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674 case Types.CLOB: |
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675 case Types.DATE: |
|
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676 case Types.TIME: |
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677 case Types.TIMESTAMP: |
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678 return true; |
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679 } |
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680 // conversion to all other types is not supported |
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|
681 return false; |
|
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|
682 } |
|
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683 |
|
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|
684 // conversion from all other JDBC SQL types are not supported |
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685 return false; |
|
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|
686 } |
|
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|
687 |
|
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|
688 /** |
|
213
115f6351bf4b
Update some documentation text
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parents:
200
diff
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|
689 * Are table correlation names supported? |
|
231
68b9452f1215
Fix warnings:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
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|
690 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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|
691 * |
|
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692 * @return true if so |
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693 */ |
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694 @Override |
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|
695 public boolean supportsTableCorrelationNames() { |
|
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|
696 return true; |
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|
697 } |
|
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|
698 |
|
a5a898f6886c
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|
699 /** |
|
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|
700 * If table correlation names are supported, are they restricted to |
|
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|
701 * be different from the names of the tables? |
|
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|
702 * |
|
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|
703 * @return true if so; false otherwise |
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|
704 */ |
|
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|
705 @Override |
|
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|
706 public boolean supportsDifferentTableCorrelationNames() { |
|
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|
707 return false; |
|
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|
708 } |
|
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changeset
|
709 |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
710 /** |
|
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changeset
|
711 * Are expressions in "ORDER BY" lists supported? |
|
a5a898f6886c
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|
712 * e.g. select * from t order by a + b; |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
713 * |
|
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|
714 * MonetDB supports this, try: |
|
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|
715 * select (radix * 1000) + digits as comp, * from types order by (radix * 1000) + digits, -id; |
|
a5a898f6886c
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|
716 * |
|
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changeset
|
717 * @return true if so |
|
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|
718 */ |
|
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|
719 @Override |
|
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|
720 public boolean supportsExpressionsInOrderBy() { |
|
a5a898f6886c
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changeset
|
721 return true; |
|
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|
722 } |
|
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|
723 |
|
a5a898f6886c
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parents:
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changeset
|
724 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
725 * Can an "ORDER BY" clause use columns not in the SELECT? |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
726 * MonetDB differs from SQL03 => true |
|
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Sjoerd Mullender <sjoerd@acm.org>
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|
727 * |
|
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
728 * @return true if so |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
729 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
730 @Override |
|
a5a898f6886c
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diff
changeset
|
731 public boolean supportsOrderByUnrelated() { |
|
a5a898f6886c
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changeset
|
732 return true; |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
733 } |
|
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Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
734 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
735 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
736 * Is some form of "GROUP BY" clause supported? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
737 * |
|
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parents:
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changeset
|
738 * @return true since MonetDB supports it |
|
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parents:
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changeset
|
739 */ |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
740 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
741 public boolean supportsGroupBy() { |
|
a5a898f6886c
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parents:
diff
changeset
|
742 return true; |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
743 } |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
744 |
|
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parents:
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changeset
|
745 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
746 * Can a "GROUP BY" clause use columns not in the SELECT? |
|
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parents:
diff
changeset
|
747 * |
|
a5a898f6886c
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diff
changeset
|
748 * @return true since that also is supported |
|
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
749 */ |
|
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parents:
diff
changeset
|
750 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
751 public boolean supportsGroupByUnrelated() { |
|
a5a898f6886c
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parents:
diff
changeset
|
752 return true; |
|
a5a898f6886c
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parents:
diff
changeset
|
753 } |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
754 |
|
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 * Can a "GROUP BY" clause add columns not in the SELECT provided |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
757 * it specifies all the columns in the SELECT? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
758 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
759 * (MonetDB already supports the more difficult supportsGroupByUnrelated(), |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
760 * so this is a piece of cake) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
761 * |
|
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762 * @return true if so |
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763 */ |
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764 @Override |
|
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|
765 public boolean supportsGroupByBeyondSelect() { |
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766 return true; |
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767 } |
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768 |
|
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|
769 /** |
|
213
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770 * Is the escape character in "LIKE" clauses supported? |
|
231
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771 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
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772 * |
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773 * @return true if so |
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changeset
|
774 */ |
|
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|
775 @Override |
|
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|
776 public boolean supportsLikeEscapeClause() { |
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777 return true; |
|
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778 } |
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|
779 |
|
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|
780 /** |
|
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|
781 * Are multiple ResultSets from a single execute supported? |
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782 * |
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783 * @return true if so |
|
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784 */ |
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785 @Override |
|
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|
786 public boolean supportsMultipleResultSets() { |
|
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787 return true; |
|
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788 } |
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789 |
|
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|
790 /** |
|
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|
791 * Can we have multiple transactions open at once (on different |
|
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792 * connections?) |
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793 * This is the main idea behind the Connection, is it? |
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794 * |
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795 * @return true if so |
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796 */ |
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797 @Override |
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798 public boolean supportsMultipleTransactions() { |
|
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799 return true; |
|
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800 } |
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801 |
|
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|
802 /** |
|
213
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803 * Can columns be defined as non-nullable. |
|
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804 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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805 * |
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806 * @return true if so |
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changeset
|
807 */ |
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|
808 @Override |
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|
809 public boolean supportsNonNullableColumns() { |
|
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810 return true; |
|
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|
811 } |
|
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812 |
|
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|
813 /** |
|
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|
814 * Does this driver support the minimum ODBC SQL grammar. This |
|
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|
815 * grammar is defined at: |
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816 * |
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817 * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/odbc/htm/odappcpr.asp |
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818 * From this description, we seem to support the ODBC minimal (Level 0) grammar. |
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819 * |
|
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820 * @return true if so |
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821 */ |
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|
822 @Override |
|
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|
823 public boolean supportsMinimumSQLGrammar() { |
|
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824 return true; |
|
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|
825 } |
|
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826 |
|
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|
827 /** |
|
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828 * Does this driver support the Core ODBC SQL grammar. We need |
|
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|
829 * SQL-92 conformance for this. |
|
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830 * |
|
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|
831 * @return true if so |
|
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|
832 */ |
|
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|
833 @Override |
|
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|
834 public boolean supportsCoreSQLGrammar() { |
|
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|
835 return true; |
|
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|
836 } |
|
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|
837 |
|
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|
838 /** |
|
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|
839 * Does this driver support the Extended (Level 2) ODBC SQL |
|
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|
840 * grammar. We don't conform to the Core (Level 1), so we can't |
|
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|
841 * conform to the Extended SQL Grammar. |
|
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842 * |
|
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|
843 * @return true if so |
|
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|
844 */ |
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|
845 @Override |
|
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|
846 public boolean supportsExtendedSQLGrammar() { |
|
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|
847 return false; |
|
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|
848 } |
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|
849 |
|
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|
850 /** |
|
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|
851 * Does this driver support the ANSI-92 entry level SQL grammar? |
|
231
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|
852 * All JDBC Compliant <sup>TM</sup> drivers must return true. |
|
0
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|
853 * |
|
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|
854 * @return true if so |
|
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|
855 */ |
|
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changeset
|
856 @Override |
|
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|
857 public boolean supportsANSI92EntryLevelSQL() { |
|
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|
858 return true; |
|
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|
859 } |
|
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|
860 |
|
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|
861 /** |
|
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|
862 * Does this driver support the ANSI-92 intermediate level SQL |
|
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|
863 * grammar? |
|
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|
864 * probably not |
|
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|
865 * |
|
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|
866 * @return true if so |
|
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|
867 */ |
|
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|
868 @Override |
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|
869 public boolean supportsANSI92IntermediateSQL() { |
|
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changeset
|
870 return false; |
|
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changeset
|
871 } |
|
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changeset
|
872 |
|
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changeset
|
873 /** |
|
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changeset
|
874 * Does this driver support the ANSI-92 full SQL grammar? |
|
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|
875 * Would be good if it was like that |
|
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|
876 * |
|
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|
877 * @return true if so |
|
a5a898f6886c
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|
878 */ |
|
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changeset
|
879 @Override |
|
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|
880 public boolean supportsANSI92FullSQL() { |
|
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|
881 return false; |
|
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|
882 } |
|
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changeset
|
883 |
|
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|
884 /** |
|
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|
885 * Is the SQL Integrity Enhancement Facility supported? |
|
267
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Correct return value for supportsIntegrityEnhancementFacility()
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changeset
|
886 * |
|
43ea6c50483e
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diff
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|
887 * The SQL Integrity Enhancement facility offers additional tools for referential integrity, |
|
43ea6c50483e
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265
diff
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|
888 * CHECK constraint clauses, and DEFAULT clauses. Referential integrity allows specification of |
|
43ea6c50483e
Correct return value for supportsIntegrityEnhancementFacility()
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|
889 * primary and foreign keys with the requirement that no foreign key row may be inserted or |
|
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|
890 * updated unless a matching primary key row exists. Check clauses allow specification of |
|
43ea6c50483e
Correct return value for supportsIntegrityEnhancementFacility()
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265
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|
891 * 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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diff
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|
892 * Default clauses provide optional default values for missing data. |
|
267
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|
893 * |
|
43ea6c50483e
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|
894 * We currently do not supprt CHECK constraints (see bug 3568) nor deferrable FK constraints. |
|
0
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|
895 * |
|
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|
896 * @return true if so |
|
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|
897 */ |
|
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|
898 @Override |
|
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|
899 public boolean supportsIntegrityEnhancementFacility() { |
|
267
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|
900 return false; |
|
0
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|
901 } |
|
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|
902 |
|
a5a898f6886c
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changeset
|
903 /** |
|
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|
904 * Is some form of outer join supported? |
|
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|
905 * |
|
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|
906 * @return true if so |
|
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|
907 */ |
|
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|
908 @Override |
|
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|
909 public boolean supportsOuterJoins(){ |
|
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|
910 return true; |
|
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|
911 } |
|
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changeset
|
912 |
|
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diff
changeset
|
913 /** |
|
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
|
914 * Are full nested outer joins supported? |
|
0
a5a898f6886c
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changeset
|
915 * |
|
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changeset
|
916 * @return true if so |
|
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changeset
|
917 */ |
|
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changeset
|
918 @Override |
|
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|
919 public boolean supportsFullOuterJoins() { |
|
a5a898f6886c
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changeset
|
920 return true; |
|
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changeset
|
921 } |
|
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changeset
|
922 |
|
a5a898f6886c
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changeset
|
923 /** |
|
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diff
changeset
|
924 * Is there limited support for outer joins? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
925 * |
|
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parents:
diff
changeset
|
926 * @return true if so |
|
a5a898f6886c
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parents:
diff
changeset
|
927 */ |
|
a5a898f6886c
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changeset
|
928 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
929 public boolean supportsLimitedOuterJoins() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
930 return false; |
|
a5a898f6886c
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parents:
diff
changeset
|
931 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
932 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
933 /** |
|
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parents:
diff
changeset
|
934 * What is the database vendor's preferred term for "schema"? |
|
a5a898f6886c
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diff
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|
935 * MonetDB uses the term "schema". |
|
a5a898f6886c
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parents:
diff
changeset
|
936 * |
|
a5a898f6886c
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diff
changeset
|
937 * @return the vendor term |
|
a5a898f6886c
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parents:
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changeset
|
938 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
939 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
940 public String getSchemaTerm() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
941 return "schema"; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
942 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
943 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
944 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
945 * 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
|
946 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
947 * @return the vendor term |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
948 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
949 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
950 public String getProcedureTerm() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
951 return "procedure"; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
952 } |
|
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diff
changeset
|
953 |
|
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 * 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
|
956 * |
|
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
352
diff
changeset
|
957 * 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
|
958 * Only SQL schemas are supported. |
|
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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352
diff
changeset
|
959 * 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>
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352
diff
changeset
|
960 * 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>
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352
diff
changeset
|
961 * A database is a different concept than an SQL catalog. |
|
0
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changeset
|
962 * |
|
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diff
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|
963 * @return the vendor term |
|
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|
964 */ |
|
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changeset
|
965 @Override |
|
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diff
changeset
|
966 public String getCatalogTerm() { |
|
356
eabbc5bf7cdb
Corrected the return value of getCatalogTerm();
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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352
diff
changeset
|
967 // 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
|
968 // 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
|
969 // 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>
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352
diff
changeset
|
970 return "cat"; |
|
0
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changeset
|
971 } |
|
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diff
changeset
|
972 |
|
a5a898f6886c
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parents:
diff
changeset
|
973 /** |
|
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diff
changeset
|
974 * Does a catalog appear at the start of a qualified table name? |
|
a5a898f6886c
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parents:
diff
changeset
|
975 * (Otherwise it appears at the end). |
|
a5a898f6886c
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parents:
diff
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|
976 * Currently there is no catalog support at all in MonetDB |
|
a5a898f6886c
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changeset
|
977 * |
|
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diff
changeset
|
978 * @return true if so |
|
a5a898f6886c
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parents:
diff
changeset
|
979 */ |
|
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parents:
diff
changeset
|
980 @Override |
|
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parents:
diff
changeset
|
981 public boolean isCatalogAtStart() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
982 // return true here; we return false for every other catalog function |
|
a5a898f6886c
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diff
changeset
|
983 // so it won't matter what we return here |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
984 return true; |
|
a5a898f6886c
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parents:
diff
changeset
|
985 } |
|
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parents:
diff
changeset
|
986 |
|
a5a898f6886c
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parents:
diff
changeset
|
987 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
988 * What is the Catalog separator. |
|
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989 * |
|
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|
990 * @return the catalog separator string |
|
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|
991 */ |
|
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|
992 @Override |
|
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|
993 public String getCatalogSeparator() { |
|
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|
994 // MonetDB does NOT support catalogs, so also no catalog separator |
|
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|
995 return null; |
|
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|
996 } |
|
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|
997 |
|
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|
998 /** |
|
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|
999 * Can a schema name be used in a data manipulation statement? |
|
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1000 * |
|
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|
1001 * @return true if so |
|
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1002 */ |
|
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1003 @Override |
|
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|
1004 public boolean supportsSchemasInDataManipulation() { |
|
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1005 return true; |
|
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1006 } |
|
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|
1007 |
|
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|
1008 /** |
|
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|
1009 * Can a schema name be used in a procedure call statement? |
|
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|
1010 * Ohw probably, but I don't know of procedures in MonetDB |
|
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1011 * |
|
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|
1012 * @return true if so |
|
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|
1013 */ |
|
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|
1014 @Override |
|
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|
1015 public boolean supportsSchemasInProcedureCalls() { |
|
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|
1016 return true; |
|
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|
1017 } |
|
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|
1018 |
|
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|
1019 /** |
|
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|
1020 * Can a schema be used in a table definition statement? |
|
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|
1021 * |
|
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|
1022 * @return true if so |
|
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|
1023 */ |
|
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|
1024 @Override |
|
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|
1025 public boolean supportsSchemasInTableDefinitions() { |
|
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|
1026 return true; |
|
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|
1027 } |
|
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|
1028 |
|
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|
1029 /** |
|
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|
1030 * Can a schema name be used in an index definition statement? |
|
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|
1031 * |
|
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Sjoerd Mullender <sjoerd@acm.org>
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|
1032 * @return true if so |
|
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|
1033 */ |
|
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changeset
|
1034 @Override |
|
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|
1035 public boolean supportsSchemasInIndexDefinitions() { |
|
294
894abb249de1
Corrected 3 MonetDatabaseMetaData methods
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
286
diff
changeset
|
1036 // 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
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|
1037 // only: create index tblidx on sch.tbl(col); |
|
894abb249de1
Corrected 3 MonetDatabaseMetaData methods
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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286
diff
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|
1038 return false; |
|
0
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|
1039 } |
|
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|
1040 |
|
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|
1041 /** |
|
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|
1042 * Can a schema name be used in a privilege definition statement? |
|
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|
1043 * |
|
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|
1044 * @return true if so |
|
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|
1045 */ |
|
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changeset
|
1046 @Override |
|
a5a898f6886c
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changeset
|
1047 public boolean supportsSchemasInPrivilegeDefinitions() { |
|
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changeset
|
1048 return true; |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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|
1049 } |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1050 |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1051 /** |
|
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Sjoerd Mullender <sjoerd@acm.org>
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|
1052 * Can a catalog name be used in a data manipulation statement? |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1053 * |
|
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|
1054 * @return true if so |
|
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1055 */ |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1056 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1057 public boolean supportsCatalogsInDataManipulation() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1058 return false; |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1059 } |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1060 |
|
a5a898f6886c
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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 * Can a catalog name be used in a procedure call statement? |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1063 * |
|
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parents:
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|
1064 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1065 */ |
|
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changeset
|
1066 @Override |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1067 public boolean supportsCatalogsInProcedureCalls() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
1068 return false; |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1069 } |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1070 |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1071 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
1072 * Can a catalog name be used in a table definition statement? |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1073 * |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1074 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1075 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1076 @Override |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1077 public boolean supportsCatalogsInTableDefinitions() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1078 return false; |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1079 } |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1080 |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1081 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1082 * 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
|
1083 * |
|
a5a898f6886c
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parents:
diff
changeset
|
1084 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1085 */ |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1086 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1087 public boolean supportsCatalogsInIndexDefinitions() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1088 return false; |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1089 } |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1090 |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1091 /** |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
1092 * Can a catalog name be used in a privilege definition statement? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1093 * |
|
a5a898f6886c
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parents:
diff
changeset
|
1094 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1095 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1096 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1097 public boolean supportsCatalogsInPrivilegeDefinitions() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1098 return false; |
|
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 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1101 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1102 * MonetDB doesn't support positioned DELETEs I guess |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1103 * |
|
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|
1104 * @return true if so |
|
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|
1105 */ |
|
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|
1106 @Override |
|
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changeset
|
1107 public boolean supportsPositionedDelete() { |
|
a5a898f6886c
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|
1108 return false; |
|
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|
1109 } |
|
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|
1110 |
|
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|
1111 /** |
|
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|
1112 * Is positioned UPDATE supported? (same as above) |
|
a5a898f6886c
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|
1113 * |
|
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|
1114 * @return true if so |
|
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|
1115 */ |
|
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|
1116 @Override |
|
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|
1117 public boolean supportsPositionedUpdate() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1118 return false; |
|
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Sjoerd Mullender <sjoerd@acm.org>
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|
1119 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1120 |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1121 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1122 * Is SELECT FOR UPDATE supported? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1123 * My test resulted in a negative answer |
|
a5a898f6886c
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|
1124 * |
|
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|
1125 * @return true if so; false otherwise |
|
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Sjoerd Mullender <sjoerd@acm.org>
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|
1126 */ |
|
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|
1127 @Override |
|
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|
1128 public boolean supportsSelectForUpdate(){ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1129 return false; |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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|
1130 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1131 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1132 /** |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1133 * 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
|
1134 * syntax supported? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1135 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1136 * @return true if so; false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1137 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1138 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
1139 public boolean supportsStoredProcedures() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1140 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1141 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1142 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1143 /** |
|
213
115f6351bf4b
Update some documentation text
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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200
diff
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|
1144 * Are subqueries in comparison expressions supported? |
|
231
68b9452f1215
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|
1145 * 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
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|
1146 * MonetDB also supports this |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1147 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1148 * @return true if so; false otherwise |
|
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changeset
|
1149 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1150 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1151 public boolean supportsSubqueriesInComparisons() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
1152 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1153 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1154 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1155 /** |
|
213
115f6351bf4b
Update some documentation text
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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200
diff
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|
1156 * Are subqueries in 'exists' expressions supported? |
|
231
68b9452f1215
Fix warnings:
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222
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|
1157 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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parents:
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changeset
|
1158 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
1159 * @return true if so; false otherwise |
|
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changeset
|
1160 */ |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1161 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1162 public boolean supportsSubqueriesInExists() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1163 return true; |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1164 } |
|
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1165 |
|
a5a898f6886c
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|
1166 /** |
|
213
115f6351bf4b
Update some documentation text
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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200
diff
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|
1167 * Are subqueries in 'in' statements supported? |
|
231
68b9452f1215
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|
1168 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1169 * |
|
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|
1170 * @return true if so; false otherwise |
|
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|
1171 */ |
|
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changeset
|
1172 @Override |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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|
1173 public boolean supportsSubqueriesInIns() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
1174 return true; |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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|
1175 } |
|
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|
1176 |
|
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|
1177 /** |
|
213
115f6351bf4b
Update some documentation text
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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200
diff
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|
1178 * Are subqueries in quantified expressions supported? |
|
231
68b9452f1215
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|
1179 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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|
1180 * |
|
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changeset
|
1181 * (No idea what this is, but we support a good deal of |
|
a5a898f6886c
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|
1182 * subquerying.) |
|
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parents:
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changeset
|
1183 * |
|
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changeset
|
1184 * @return true if so; false otherwise |
|
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changeset
|
1185 */ |
|
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changeset
|
1186 @Override |
|
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changeset
|
1187 public boolean supportsSubqueriesInQuantifieds() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
1188 return true; |
|
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|
1189 } |
|
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changeset
|
1190 |
|
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|
1191 /** |
|
213
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|
1192 * Are correlated subqueries supported? |
|
231
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|
1193 * A JDBC Compliant <sup>TM</sup> driver always returns true. |
|
0
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|
1194 * |
|
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|
1195 * (a.k.a. subselect in from?) |
|
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|
1196 * |
|
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|
1197 * @return true if so; false otherwise |
|
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|
1198 */ |
|
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|
1199 @Override |
|
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|
1200 public boolean supportsCorrelatedSubqueries() { |
|
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|
1201 return true; |
|
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changeset
|
1202 } |
|
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|
1203 |
|
a5a898f6886c
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|
1204 /** |
|
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|
1205 * Is SQL UNION supported? |
|
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|
1206 * since 2004-03-20 |
|
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|
1207 * |
|
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|
1208 * @return true if so |
|
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|
1209 */ |
|
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changeset
|
1210 @Override |
|
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changeset
|
1211 public boolean supportsUnion() { |
|
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changeset
|
1212 return true; |
|
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changeset
|
1213 } |
|
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changeset
|
1214 |
|
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changeset
|
1215 /** |
|
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changeset
|
1216 * Is SQL UNION ALL supported? |
|
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|
1217 * since 2004-03-20 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1218 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1219 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1220 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1221 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1222 public boolean supportsUnionAll() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1223 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1224 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1225 |
|
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 * 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
|
1228 * implicit commit. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1229 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1230 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1231 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1232 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1233 public boolean supportsOpenCursorsAcrossCommit() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1234 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1235 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1236 |
|
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 * Same as above |
|
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 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1241 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1242 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1243 public boolean supportsOpenCursorsAcrossRollback() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1244 return true; |
|
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 |
|
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 * 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
|
1249 * this driver cannot guarentee that. In further reflection. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1250 * 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
|
1251 * 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
|
1252 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1253 * @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
|
1254 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1255 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1256 public boolean supportsOpenStatementsAcrossCommit() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1257 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1258 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1259 |
|
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 * 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
|
1262 * this driver cannot guarentee that. In further contemplation, |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1263 * 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:
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changeset
|
1264 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1265 * @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
|
1266 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1267 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1268 public boolean supportsOpenStatementsAcrossRollback() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1269 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1270 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1271 |
|
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 * 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
|
1274 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1275 * @return the max literal length |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1276 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1277 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1278 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
|
1279 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
|
1280 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1281 |
|
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 * 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
|
1284 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1285 * @return the max literal length |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1286 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1287 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1288 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
|
1289 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
|
1290 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1291 |
|
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.
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parents:
diff
changeset
|
1293 * Whats the limit on column name length. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1294 * 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
|
1295 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1296 * @return the maximum column name length |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1297 */ |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1298 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1299 public int getMaxColumnNameLength() { |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
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parents:
7
diff
changeset
|
1300 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
|
1301 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
1302 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
1303 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1304 * What is the maximum number of columns in a "GROUP BY" clause? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1305 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1306 * @return the max number of columns |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1307 */ |
|
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parents:
diff
changeset
|
1308 @Override |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1309 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
|
1310 return 0; // no specific limit known |
|
0
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parents:
diff
changeset
|
1311 } |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1312 |
|
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parents:
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changeset
|
1313 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
1314 * What's the maximum number of columns allowed in an index? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1315 * |
|
a5a898f6886c
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parents:
diff
changeset
|
1316 * @return max number of columns |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
1317 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1318 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1319 public int getMaxColumnsInIndex() { |
|
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
|
1320 return 0; // no specific limit known |
|
0
a5a898f6886c
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parents:
diff
changeset
|
1321 } |
|
a5a898f6886c
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parents:
diff
changeset
|
1322 |
|
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diff
changeset
|
1323 /** |
|
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diff
changeset
|
1324 * What's the maximum number of columns in an "ORDER BY clause? |
|
a5a898f6886c
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parents:
diff
changeset
|
1325 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1326 * @return the max columns |
|
a5a898f6886c
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parents:
diff
changeset
|
1327 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1328 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1329 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
|
1330 return 0; // no specific limit known |
|
0
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 |
|
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 * 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
|
1335 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1336 * @return the max columns |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1337 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1338 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1339 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
|
1340 return 0; // no specific limit known |
|
0
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 |
|
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 * 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
|
1345 * |
|
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1346 * 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
|
1347 * 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
|
1348 * 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
|
1349 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1350 * @return the max columns |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
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|
1351 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1352 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1353 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
|
1354 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
|
1355 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1356 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1357 /** |
|
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
|
1358 * 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>
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diff
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|
1359 * |
|
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
|
1360 * @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.
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parents:
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changeset
|
1361 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1362 @Override |
|
7
b3ca1157be73
Improve DatabaseMetaData.getDatabaseProductVersion() to never return a null String.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
0
diff
changeset
|
1363 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
|
1364 return con.getMaxConnections(); |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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|
1365 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1366 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1367 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1368 * What is the maximum cursor name length |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1369 * 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
|
1370 * a precaution for maybe the future. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
1371 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
1372 * @return max cursor name length in bytes |
|
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 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1375 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
|
1376 return 0; // no specific limit known |
|
0
a5a898f6886c
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parents:
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changeset
|
1377 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1378 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1379 /** |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1380 * 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
|
1381 * of the parts of the index. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1382 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1383 * @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
|
1384 * 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>
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|
1385 * means that there is no limit or the limit is not known |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1386 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1387 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1388 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
|
1389 return 0; // no specific limit known |
|
0
a5a898f6886c
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parents:
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changeset
|
1390 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
1391 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
1392 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
1393 * Retrieves the maximum number of characters that this database |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
1394 * allows in a schema name. |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1395 * |
|
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changeset
|
1396 * @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
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|
1397 * limit is unknown. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1398 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
1399 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1400 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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diff
changeset
|
1401 return 1024; // In MonetDB the max length of column sys.schemas.name is defined as 1024 |
|
0
a5a898f6886c
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|
1402 } |
|
a5a898f6886c
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changeset
|
1403 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1404 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
1405 * What is the maximum length of a procedure name |
|
a5a898f6886c
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|
1406 * |
|
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diff
changeset
|
1407 * @return the max name length in bytes |
|
a5a898f6886c
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|
1408 */ |
|
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changeset
|
1409 @Override |
|
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|
1410 public int getMaxProcedureNameLength() { |
|
15
6e48d0fae766
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
changeset
|
1411 return 256; // In MonetDB the max length of column sys.functions.name is defined as 256 |
|
0
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|
1412 } |
|
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changeset
|
1413 |
|
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|
1414 /** |
|
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|
1415 * What is the maximum length of a catalog |
|
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parents:
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|
1416 * |
|
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|
1417 * @return the maximum number of characters allowed in a catalog name; |
|
a5a898f6886c
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parents:
diff
changeset
|
1418 * a result of zero means that there is no limit or the limit is not known |
|
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|
1419 */ |
|
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changeset
|
1420 @Override |
|
a5a898f6886c
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diff
changeset
|
1421 public int getMaxCatalogNameLength() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1422 return 0; // MonetDB does not support catalog names |
|
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|
1423 } |
|
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changeset
|
1424 |
|
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changeset
|
1425 /** |
|
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parents:
diff
changeset
|
1426 * What is the maximum length of a single row? |
|
a5a898f6886c
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parents:
diff
changeset
|
1427 * |
|
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changeset
|
1428 * @return max row size in bytes |
|
a5a898f6886c
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changeset
|
1429 */ |
|
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changeset
|
1430 @Override |
|
a5a898f6886c
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parents:
diff
changeset
|
1431 public int getMaxRowSize() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1432 return 0; // very long I hope... |
|
a5a898f6886c
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parents:
diff
changeset
|
1433 } |
|
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changeset
|
1434 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1435 /** |
|
15
6e48d0fae766
Corrected return values of DatabaseMetaData methods nullsAreSortedHigh(), nullsAreSortedLow(),
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
7
diff
changeset
|
1436 * 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
|
1437 * blobs? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1438 * Yes I thought so... |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1439 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1440 * @return true if so |
|
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 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1443 public boolean doesMaxRowSizeIncludeBlobs() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1444 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1445 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1446 |
|
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 * 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
|
1449 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1450 * @return max length in bytes |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1451 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1452 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1453 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
|
1454 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
|
1455 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1456 |
|
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 * 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
|
1459 * this database? Basically, since each Statement downloads |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1460 * 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
|
1461 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1462 * @return the maximum |
|
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 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1465 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
|
1466 return 0; // no specific limit known |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1467 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1468 |
|
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 * 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
|
1471 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1472 * @return max name length in bytes |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1473 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1474 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1475 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
|
1476 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:
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changeset
|
1477 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1478 |
|
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 * 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
|
1481 * in a SELECT? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1482 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1483 * @return the maximum |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1484 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1485 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1486 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
|
1487 return 0; // no specific limit known |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1488 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1489 |
|
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 * 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
|
1492 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1493 * @return the max name length in bytes |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1494 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1495 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1496 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
|
1497 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
|
1498 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1499 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1500 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1501 * 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
|
1502 * 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
|
1503 * reads can occur. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1504 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1505 * @return the default isolation level |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1506 * @see Connection |
|
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 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1509 public int getDefaultTransactionIsolation() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1510 return Connection.TRANSACTION_SERIALIZABLE; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1511 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1512 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1513 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1514 * 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
|
1515 * 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
|
1516 * transactions. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1517 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1518 * @return true if transactions are supported |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1519 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1520 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1521 public boolean supportsTransactions() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1522 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1523 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1524 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1525 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
1526 * 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
|
1527 * We only support TRANSACTION_SERIALIZABLE as far as I know |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
1528 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1529 * @param level the values are defined in java.sql.Connection |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1530 * @return true if so |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1531 * @see Connection |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1532 */ |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1533 @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
|
1534 public boolean supportsTransactionIsolationLevel(final int level) { |
|
0
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parents:
diff
changeset
|
1535 return level == Connection.TRANSACTION_SERIALIZABLE; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1536 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1537 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1538 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1539 * Are both data definition and data manipulation transactions |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1540 * supported? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1541 * Supposedly that data definition is like CREATE or ALTER TABLE |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1542 * yes it is. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1543 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1544 * @return true if so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1545 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1546 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1547 public boolean supportsDataDefinitionAndDataManipulationTransactions() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1548 return true; |
|
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|
1549 } |
|
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|
1550 |
|
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|
1551 /** |
|
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|
1552 * Are only data manipulation statements within a transaction |
|
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|
1553 * supported? |
|
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|
1554 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1555 * @return true if so |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1556 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1557 @Override |
|
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|
1558 public boolean supportsDataManipulationTransactionsOnly() { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1559 return false; |
|
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|
1560 } |
|
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|
1561 |
|
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|
1562 /** |
|
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|
1563 * Does a data definition statement within a transaction force |
|
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|
1564 * the transaction to commit? I think this means something like: |
|
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|
1565 * |
|
194
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|
1566 * <pre> |
|
0
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|
1567 * CREATE TABLE T (A INT); |
|
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|
1568 * INSERT INTO T (A) VALUES (2); |
|
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|
1569 * BEGIN; |
|
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|
1570 * UPDATE T SET A = A + 1; |
|
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|
1571 * CREATE TABLE X (A INT); |
|
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|
1572 * SELECT A FROM T INTO X; |
|
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|
1573 * COMMIT; |
|
194
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|
1574 * </pre> |
|
0
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|
1575 * |
|
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|
1576 * does the CREATE TABLE call cause a commit? The answer is no. |
|
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|
1577 * |
|
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|
1578 * @return true if so |
|
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|
1579 */ |
|
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|
1580 @Override |
|
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|
1581 public boolean dataDefinitionCausesTransactionCommit() { |
|
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|
1582 return false; |
|
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|
1583 } |
|
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|
1584 |
|
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|
1585 /** |
|
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|
1586 * Is a data definition statement within a transaction ignored? |
|
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|
1587 * |
|
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|
1588 * @return true if so |
|
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|
1589 */ |
|
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|
1590 @Override |
|
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|
1591 public boolean dataDefinitionIgnoredInTransactions() { |
|
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|
1592 return false; |
|
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|
1593 } |
|
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|
1594 |
|
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|
1595 /** |
|
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|
1596 * Get a description of stored procedures available in a catalog |
|
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|
1597 * |
|
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|
1598 * <p>Only procedure descriptions matching the schema and procedure |
|
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|
1599 * name criteria are returned. They are ordered by PROCEDURE_SCHEM, |
|
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|
1600 * PROCEDURE_NAME and SPECIFIC_NAME. |
|
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|
1601 * |
|
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|
1602 * <p>Each procedure description has the following columns: |
|
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|
1603 * <ol> |
|
194
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|
1604 * <li><b>PROCEDURE_CAT</b> String => procedure catalog (may be null) |
|
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|
1605 * <li><b>PROCEDURE_SCHEM</b> String => procedure schema (may be null) |
|
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1606 * <li><b>PROCEDURE_NAME</b> String => procedure name |
|
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|
1607 * <li><b>Field4</b> reserved (make it null) |
|
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|
1608 * <li><b>Field5</b> reserved (make it null) |
|
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|
1609 * <li><b>Field6</b> reserved (make it null) |
|
194
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|
1610 * <li><b>REMARKS</b> String => explanatory comment on the procedure |
|
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|
1611 * <li><b>PROCEDURE_TYPE</b> short => kind of procedure |
|
0
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|
1612 * <ul> |
|
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|
1613 * <li> procedureResultUnknown - May return a result |
|
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|
1614 * <li> procedureNoResult - Does not return a result |
|
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|
1615 * <li> procedureReturnsResult - Returns a result |
|
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|
1616 * </ul> |
|
194
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|
1617 * <li><b>SPECIFIC_NAME</b> String => The name which uniquely identifies this procedure within its schema. |
|
0
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|
1618 * </ol> |
|
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|
1619 * |
|
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|
1620 * @param catalog - a catalog name; must match the catalog name as it is stored in the database; |
|
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|
1621 * "" retrieves those without a catalog; |
|
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|
1622 * null means that the catalog name should not be used to narrow the search |
|
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|
1623 * @param schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; |
|
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|
1624 * "" retrieves those without a schema; |
|
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|
1625 * null means that the schema name should not be used to narrow the search |
|
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|
1626 * @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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|
1627 * 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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|
1628 * @return ResultSet - each row is a procedure description |
|
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|
1629 * @throws SQLException if a database access error occurs |
|
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|
1630 */ |
|
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|
1631 @Override |
|
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|
1632 public ResultSet getProcedures( |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
1633 final String catalog, |
|
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|
1634 final String schemaPattern, |
|
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|
1635 final String procedureNamePattern |
|
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|
1636 ) throws SQLException |
|
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|
1637 { |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
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|
1638 final boolean useCommentsTable = con.commentsTableExists(); |
|
295
003ae6d881db
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|
1639 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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diff
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|
1640 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
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|
1641 "s.\"name\" AS \"PROCEDURE_SCHEM\", " + |
|
1b6c514106ce
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|
1642 "f.\"name\" AS \"PROCEDURE_NAME\", " + |
|
0
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|
1643 "cast(null as char(1)) AS \"Field4\", " + |
|
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|
1644 "cast(null as char(1)) AS \"Field5\", " + |
|
215
71b039bc2d99
Added support for querying the sys.comments table for some meta data methods
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diff
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|
1645 "cast(null as char(1)) AS \"Field6\", ") |
|
302
1b6c514106ce
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|
1646 .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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|
1647 // 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())
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diff
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|
1648 "cast(").append(DatabaseMetaData.procedureNoResult).append(" AS smallint) AS \"PROCEDURE_TYPE\", " + |
|
0
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|
1649 // only the id value uniquely identifies a procedure. Include it to be able to differentiate between multiple overloaded procedures with the same name |
|
302
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|
1650 "cast(f.\"id\" as varchar(10)) AS \"SPECIFIC_NAME\" " + |
|
352
f62137dd6050
Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
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350
diff
changeset
|
1651 "FROM \"sys\".\"functions\" f JOIN \"sys\".\"schemas\" s ON f.\"schema_id\" = s.\"id\" "); |
|
215
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Added support for querying the sys.comments table for some meta data methods
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|
1652 if (useCommentsTable) { |
|
352
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|
1653 query.append("LEFT OUTER JOIN \"sys\".\"comments\" cm ON f.\"id\" = cm.\"id\" "); |
|
215
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|
1654 } |
|
0
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|
1655 // include procedures only (type = 2). Others will be returned via getFunctions() |
|
302
1b6c514106ce
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|
1656 query.append("WHERE f.\"type\" = 2"); |
|
0
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|
1657 |
|
216
116b5a149fb4
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|
1658 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
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|
1659 // non-empty catalog selection. |
|
0
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|
1660 // as we do not support catalogs this always results in no rows returned |
|
352
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|
1661 query.append(" AND 1=0"); |
|
216
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|
1662 } 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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|
1663 if (schemaPattern != null && !schemaPattern.equals("%")) { |
|
302
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|
1664 query.append(" AND s.\"name\" ").append(composeMatchPart(schemaPattern)); |
|
216
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|
1665 } |
|
323
8701024a9bb0
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|
1666 if (procedureNamePattern != null && !procedureNamePattern.equals("%")) { |
|
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|
1667 query.append(" AND f.\"name\" ").append(composeMatchPart(procedureNamePattern)); |
|
216
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|
1668 } |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
1669 } |
|
216
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|
1670 |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1671 query.append(" ORDER BY \"PROCEDURE_SCHEM\", \"PROCEDURE_NAME\", \"SPECIFIC_NAME\""); |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1672 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1673 return executeMetaDataQuery(query.toString()); |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
1674 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
1675 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
1676 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1677 * 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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diff
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|
1678 * and result columns. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
1679 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
1680 * <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
|
1681 * 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
|
1682 * and SPECIFIC_NAME. Within this, the return value, if any, is first. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1683 * Next are the parameter descriptions in call order. The |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1684 * column descriptions follow in column number order. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1685 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1686 * <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
|
1687 * description with the following fields: |
|
a5a898f6886c
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parents:
diff
changeset
|
1688 * <ol> |
|
194
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Resolved javadoc many errors and warnings, such as:
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diff
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|
1689 * <li><b>PROCEDURE_CAT</b> String => procedure catalog (may be null) |
|
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|
1690 * <li><b>PROCEDURE_SCHEM</b> String => procedure schema (may be null) |
|
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|
1691 * <li><b>PROCEDURE_NAME</b> String => procedure name |
|
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186
diff
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|
1692 * <li><b>COLUMN_NAME</b> String => column/parameter name |
|
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|
1693 * <li><b>COLUMN_TYPE</b> Short => kind of column/parameter: |
|
0
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parents:
diff
changeset
|
1694 * <ul><li>procedureColumnUnknown - nobody knows |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1695 * <li>procedureColumnIn - IN parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1696 * <li>procedureColumnInOut - INOUT parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1697 * <li>procedureColumnOut - OUT parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1698 * <li>procedureColumnReturn - procedure return value |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1699 * <li>procedureColumnResult - result column in ResultSet |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1700 * </ul> |
|
194
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Resolved javadoc many errors and warnings, such as:
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186
diff
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|
1701 * <li><b>DATA_TYPE</b> int => SQL type from java.sql.Types |
|
1296dbcc4958
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186
diff
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|
1702 * <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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|
1703 * <li><b>PRECISION</b> int => precision |
|
1296dbcc4958
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186
diff
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|
1704 * <li><b>LENGTH</b> int => length in bytes of data |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
diff
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|
1705 * <li><b>SCALE</b> short => scale - null is returned for data types where SCALE is not applicable. |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
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|
1706 * <li><b>RADIX</b> short => radix |
|
1296dbcc4958
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186
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|
1707 * <li><b>NULLABLE</b> short => can it contain NULL? |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1708 * <ul><li>procedureNoNulls - does not allow NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1709 * <li>procedureNullable - allows NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1710 * <li>procedureNullableUnknown - nullability unknown |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1711 * </ul> |
|
194
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Resolved javadoc many errors and warnings, such as:
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186
diff
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|
1712 * <li><b>REMARKS</b> String => comment describing parameter/column |
|
1296dbcc4958
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|
1713 * <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
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
1714 * The string NULL (not enclosed in quotes) - if NULL was specified as the default value |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
1715 * TRUNCATE (not enclosed in quotes) - if the specified default value cannot be represented without truncation |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1716 * NULL - if a default value was not specified |
|
194
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|
1717 * <li><b>SQL_DATA_TYPE</b> int => reserved for future use |
|
1296dbcc4958
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186
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|
1718 * <li><b>SQL_DATETIME_SUB</b> int => reserved for future use |
|
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|
1719 * <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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|
1720 * <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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parents:
diff
changeset
|
1721 * 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
Copy of MonetDB java directory changeset e6e32756ad31.
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|
1722 * column in the result set starting from 1. If there are multiple result sets, the column ordinal positions are implementation defined. |
|
194
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|
1723 * <li><b>IS_NULLABLE</b> String => ISO rules are used to determine the nullability for a column. |
|
0
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|
1724 * <ul><li>YES --- if the parameter can include NULLs |
|
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|
1725 * <li>NO --- if the parameter cannot include NULLs |
|
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|
1726 * <li>empty string --- if the nullability for the parameter is unknown |
|
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|
1727 * </ul> |
|
194
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|
1728 * <li><b>SPECIFIC_NAME</b> String => the name which uniquely identifies this procedure within its schema. |
|
0
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|
1729 * </ol> |
|
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|
1730 * @param catalog - a catalog name; must match the catalog name as it is stored in the database; |
|
a5a898f6886c
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|
1731 * "" retrieves those without a catalog; |
|
a5a898f6886c
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|
1732 * null means that the catalog name should not be used to narrow the search |
|
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|
1733 * @param schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; |
|
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|
1734 * "" retrieves those without a schema; |
|
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|
1735 * null means that the schema name should not be used to narrow the search |
|
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|
1736 * @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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|
1737 * 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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|
1738 * @param columnNamePattern - a column name pattern; must match the column name as it is stored in the database |
|
371
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|
1739 * 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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|
1740 * @return ResultSet - each row describes a stored procedure parameter or column |
|
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|
1741 * @throws SQLException if a database-access error occurs |
|
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|
1742 * @see #getSearchStringEscape |
|
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|
1743 */ |
|
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|
1744 @Override |
|
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|
1745 public ResultSet getProcedureColumns( |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
1746 final String catalog, |
|
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1747 final String schemaPattern, |
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1748 final String procedureNamePattern, |
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1749 final String columnNamePattern |
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1750 ) throws SQLException { |
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1751 final StringBuilder query = new StringBuilder(2900); |
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1752 query.append("SELECT cast(null as char(1)) AS \"PROCEDURE_CAT\", " + |
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1753 "s.\"name\" AS \"PROCEDURE_SCHEM\", " + |
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1754 "f.\"name\" AS \"PROCEDURE_NAME\", " + |
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1755 "a.\"name\" AS \"COLUMN_NAME\", " + |
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1756 "cast(CASE a.\"inout\"" + |
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1757 " WHEN 0 THEN (CASE a.\"number\" WHEN 0 THEN ").append(DatabaseMetaData.procedureColumnReturn).append(" ELSE ").append(DatabaseMetaData.procedureColumnOut).append(" END)" + |
|
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1758 " WHEN 1 THEN ").append(DatabaseMetaData.procedureColumnIn) |
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1759 .append(" ELSE ").append(DatabaseMetaData.procedureColumnUnknown).append(" END AS smallint) AS \"COLUMN_TYPE\", " + |
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1760 "cast(").append(MonetDriver.getSQLTypeMap("a.\"type\"")).append(" AS int) AS \"DATA_TYPE\", " + |
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1761 "a.\"type\" AS \"TYPE_NAME\", " + |
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1762 "CASE a.\"type\" WHEN 'tinyint' THEN 3 WHEN 'smallint' THEN 5 WHEN 'int' THEN 10 WHEN 'bigint' THEN 19 WHEN 'hugeint' THEN 38 WHEN 'oid' THEN 19 WHEN 'wrd' THEN 19 ELSE a.\"type_digits\" END AS \"PRECISION\", " + |
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1763 "CASE a.\"type\" WHEN 'tinyint' THEN 1 WHEN 'smallint' THEN 2 WHEN 'int' THEN 4 WHEN 'bigint' THEN 8 WHEN 'hugeint' THEN 16 WHEN 'oid' THEN 8 WHEN 'wrd' THEN 8 ELSE a.\"type_digits\" END AS \"LENGTH\", " + |
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1764 "cast(CASE WHEN a.\"type\" IN ('tinyint','smallint','int','bigint','hugeint','oid','wrd','decimal','numeric','time','timetz','timestamp','timestamptz','sec_interval') THEN a.\"type_scale\" ELSE NULL END AS smallint) AS \"SCALE\", " + |
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1765 "cast(CASE WHEN a.\"type\" IN ('tinyint','smallint','int','bigint','hugeint','oid','wrd','decimal','numeric') THEN 10 WHEN a.\"type\" IN ('real','float','double') THEN 2 ELSE NULL END AS smallint) AS \"RADIX\", " + |
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1766 "cast(").append(DatabaseMetaData.procedureNullableUnknown).append(" AS smallint) AS \"NULLABLE\", " + |
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1767 "cast(null as char(1)) AS \"REMARKS\", " + |
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1768 "cast(null as char(1)) AS \"COLUMN_DEF\", " + |
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1769 "cast(0 as int) AS \"SQL_DATA_TYPE\", " + |
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1770 "cast(0 as int) AS \"SQL_DATETIME_SUB\", " + |
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1771 "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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1772 // 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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1773 "cast(a.\"number\" + 1 as int) AS \"ORDINAL_POSITION\", " + |
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1774 "cast('' as varchar(3)) AS \"IS_NULLABLE\", " + |
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1775 // 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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1776 "cast(f.\"id\" as varchar(10)) AS \"SPECIFIC_NAME\" " + |
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1777 "FROM \"sys\".\"args\" a " + |
|
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1778 "JOIN \"sys\".\"functions\" f ON a.\"func_id\" = f.\"id\" " + |
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1779 "JOIN \"sys\".\"schemas\" s ON f.\"schema_id\" = s.\"id\" " + |
|
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1780 // include procedures only (type = 2). Others will be returned via getFunctionColumns() |
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1781 "WHERE f.\"type\" = 2"); |
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1782 |
|
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1783 if (catalog != null && !catalog.isEmpty()) { |
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1784 // non-empty catalog selection. |
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1785 // as we do not support catalogs this always results in no rows returned |
|
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1786 query.append(" AND 1=0"); |
|
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1787 } else { |
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1788 if (schemaPattern != null && !schemaPattern.equals("%")) { |
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1789 query.append(" AND s.\"name\" ").append(composeMatchPart(schemaPattern)); |
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1790 } |
|
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1791 if (procedureNamePattern != null && !procedureNamePattern.equals("%")) { |
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1792 query.append(" AND f.\"name\" ").append(composeMatchPart(procedureNamePattern)); |
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1793 } |
|
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1794 if (columnNamePattern != null && !columnNamePattern.equals("%")) { |
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1795 query.append(" AND a.\"name\" ").append(composeMatchPart(columnNamePattern)); |
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1796 } |
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1797 } |
|
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1798 |
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1799 query.append(" ORDER BY \"PROCEDURE_SCHEM\", \"PROCEDURE_NAME\", \"SPECIFIC_NAME\", \"ORDINAL_POSITION\""); |
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1800 |
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1801 return executeMetaDataQuery(query.toString()); |
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1802 } |
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1803 |
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1804 /** |
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1805 * Retrieves a description of the tables available in the given catalog. |
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1806 * Only table descriptions matching the catalog, schema, table name and type criteria are returned. |
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1807 * They are ordered by TABLE_TYPE, TABLE_CAT, TABLE_SCHEM and TABLE_NAME. |
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1808 * |
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1809 * <p>Each table description has the following columns: |
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1810 * |
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1811 * <ol> |
|
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1812 * <li><b>TABLE_CAT</b> String => table catalog (may be null) |
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1813 * <li><b>TABLE_SCHEM</b> String => table schema (may be null) |
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1814 * <li><b>TABLE_NAME</b> String => table name |
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1815 * <li><b>TABLE_TYPE</b> String => table type. Typical types are "TABLE", |
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1816 * "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM". |
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1817 * <li><b>REMARKS</b> String => explanatory comment on the table |
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1818 * <li><b>TYPE_CAT</b> String => the types catalog (may be null) |
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1819 * <li><b>TYPE_SCHEM</b> String => the types schema (may be null) |
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1820 * <li><b>TYPE_NAME</b> String => type name (may be null) |
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1821 * <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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1822 * <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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1823 * </ol> |
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1824 * |
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1825 * @param catalog - a catalog name; must match the catalog name as it is stored in the database; |
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1826 * "" retrieves those without a catalog; null means that the |
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1827 * catalog name should not be used to narrow the search |
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1828 * @param schemaPattern - a schema name pattern; must match the schema name as it is stored |
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1829 * in the database; "" retrieves those without a schema; |
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1830 * null means that the schema name should not be used to narrow the search |
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1831 * @param tableNamePattern - a table name pattern; must match the table name as it is stored in the database |
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1832 * For all tables this should be "%" |
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1833 * 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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1834 * @param types - a list of table types, which must be from the list of table types returned |
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1835 * from getTableTypes(),to include; null returns all types |
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1836 * @return ResultSet - each row is a table description |
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1837 * @throws SQLException if a database-access error occurs. |
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1838 */ |
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1839 @Override |
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1840 public ResultSet getTables( |
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1841 final String catalog, |
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1842 final String schemaPattern, |
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1843 final String tableNamePattern, |
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1844 final String types[] |
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1845 ) throws SQLException |
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1846 { |
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1847 // 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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1848 // as of Jul2015 release we also have a new table: sys.table_types with names for the new table types |
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1849 // 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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1850 final boolean preJul2015 = ("11.19.15".compareTo(getDatabaseProductVersion()) >= 0); |
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331
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1851 // for debug: System.out.println("getDatabaseProductVersion() is " + getDatabaseProductVersion() + " preJul2015 is " + preJul2015); |
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1852 |
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1853 final boolean useCommentsTable = con.commentsTableExists(); |
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1854 final StringBuilder query = new StringBuilder(1600); |
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1855 if (preJul2015 && types != null && types.length > 0) { |
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1856 // 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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1857 query.append("SELECT * FROM ("); |
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1858 } |
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1859 query.append("SELECT cast(null as char(1)) AS \"TABLE_CAT\", " + |
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1860 "s.\"name\" AS \"TABLE_SCHEM\", " + |
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1861 "t.\"name\" AS \"TABLE_NAME\", "); |
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1862 if (preJul2015) { |
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1863 query.append( |
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1864 "CASE WHEN t.\"system\" = true AND t.\"type\" IN (0, 10) AND t.\"temporary\" = 0 THEN 'SYSTEM TABLE' " + |
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1865 "WHEN t.\"system\" = true AND t.\"type\" IN (1, 11) AND t.\"temporary\" = 0 THEN 'SYSTEM VIEW' " + |
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1866 "WHEN t.\"system\" = false AND t.\"type\" = 0 AND t.\"temporary\" = 0 THEN 'TABLE' " + |
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1867 "WHEN t.\"system\" = false AND t.\"type\" = 1 AND t.\"temporary\" = 0 THEN 'VIEW' " + |
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1868 "WHEN t.\"system\" = true AND t.\"type\" IN (0, 20) AND t.\"temporary\" = 1 THEN 'SYSTEM SESSION TABLE' " + |
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1869 "WHEN t.\"system\" = true AND t.\"type\" IN (1, 21) AND t.\"temporary\" = 1 THEN 'SYSTEM SESSION VIEW' " + |
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1870 "WHEN t.\"system\" = false AND t.\"type\" IN (0, 30) AND t.\"temporary\" = 1 THEN 'SESSION TABLE' " + |
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1871 "WHEN t.\"system\" = false AND t.\"type\" IN (1, 31) AND t.\"temporary\" = 1 THEN 'SESSION VIEW' " + |
|
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1872 "END AS \"TABLE_TYPE\", "); |
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1873 } else { |
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1874 query.append("tt.\"table_type_name\" AS \"TABLE_TYPE\", "); |
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1875 } |
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1876 query.append(useCommentsTable ? "COALESCE(cm.\"remark\", t.\"query\")" : "t.\"query\"").append(" AS \"REMARKS\", " + |
|
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1877 "cast(null as char(1)) AS \"TYPE_CAT\", " + |
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1878 "cast(null as char(1)) AS \"TYPE_SCHEM\", " + |
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1879 "cast(null as char(1)) AS \"TYPE_NAME\", " + |
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1880 "cast(null as char(1)) AS \"SELF_REFERENCING_COL_NAME\", " + |
|
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1881 "cast(null as char(1)) AS \"REF_GENERATION\" " + |
|
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1882 "FROM \"sys\".\"tables\" t "); |
|
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1883 if (!preJul2015) { |
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1884 query.append("JOIN \"sys\".\"table_types\" tt ON t.\"type\" = tt.\"table_type_id\" "); |
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1885 } |
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1886 query.append("JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" "); |
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1887 if (useCommentsTable) { |
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1888 query.append("LEFT OUTER JOIN \"sys\".\"comments\" cm ON t.\"id\" = cm.\"id\" "); |
|
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1889 } |
|
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1890 |
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1891 boolean needWhere = true; |
|
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1892 if (catalog != null && !catalog.isEmpty()) { |
|
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|
1893 // non-empty catalog selection. |
|
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1894 // as we do not support catalogs this always results in no rows returned |
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1895 query.append("WHERE 1=0"); |
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1896 needWhere = false; |
|
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1897 } else { |
|
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1898 if (schemaPattern != null && !schemaPattern.equals("%")) { |
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1899 query.append("WHERE s.\"name\" ").append(composeMatchPart(schemaPattern)); |
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1900 needWhere = false; |
|
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1901 } |
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1902 if (tableNamePattern != null && !tableNamePattern.equals("%")) { |
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1903 query.append(needWhere ? "WHERE" : " AND") |
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1904 .append(" t.\"name\" ").append(composeMatchPart(tableNamePattern)); |
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1905 needWhere = false; |
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1906 } |
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1907 } |
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1908 |
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1909 if (types != null && types.length > 0) { |
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1910 if (preJul2015) { |
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1911 query.append(") AS \"getTables\" WHERE \"TABLE_TYPE\" IN ("); |
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1912 } else { |
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1913 query.append(needWhere ? "WHERE" : " AND") |
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1914 .append(" tt.\"table_type_name\" IN ("); |
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1915 } |
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1916 for (int i = 0; i < types.length; i++) { |
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1917 if (i > 0) { |
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1918 query.append(", "); |
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1919 } |
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1920 query.append("'").append(types[i]).append("'"); |
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1921 } |
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1922 query.append(")"); |
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1923 } |
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1924 |
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|
1925 query.append(" ORDER BY \"TABLE_TYPE\", \"TABLE_SCHEM\", \"TABLE_NAME\""); |
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1926 |
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1927 return executeMetaDataQuery(query.toString()); |
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1928 } |
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1929 |
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1930 /** |
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1931 * Get the schema names available in this database. The results |
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1932 * are ordered by schema name. |
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1933 * |
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1934 * <P>The schema column is: |
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1935 * <OL> |
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1936 * <LI><B>TABLE_SCHEM</B> String => schema name |
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1937 * <LI><B>TABLE_CATALOG</B> String => catalog name (may be null) |
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1938 * </OL> |
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1939 * |
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1940 * @param catalog a catalog name; must match the catalog name as it |
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1941 * is stored in the database;"" retrieves those without a |
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1942 * catalog; null means catalog name should not be used to |
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1943 * narrow down the search. |
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1944 * @param schemaPattern a schema name; must match the schema name as |
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1945 * it is stored in the database; null means schema name |
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1946 * should not be used to narrow down the search. |
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1947 * @return ResultSet each row has a single String column that is a |
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1948 * schema name |
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1949 * @throws SQLException if a database error occurs |
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1950 */ |
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1951 @Override |
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1952 public ResultSet getSchemas(final String catalog, final String schemaPattern) |
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1953 throws SQLException |
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1954 { |
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1955 final StringBuilder query = new StringBuilder(170); |
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1956 query.append("SELECT \"name\" AS \"TABLE_SCHEM\", " + |
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1957 "cast(null as char(1)) AS \"TABLE_CATALOG\" " + |
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1958 "FROM \"sys\".\"schemas\" "); |
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1959 |
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1960 if (catalog != null && !catalog.isEmpty()) { |
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1961 // non-empty catalog selection. |
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1962 // as we do not support catalogs this always results in no rows returned |
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1963 query.append("WHERE 1=0"); |
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1964 } else { |
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323
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1965 if (schemaPattern != null && !schemaPattern.equals("%")) { |
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1966 query.append("WHERE \"name\" ").append(composeMatchPart(schemaPattern)); |
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1967 } |
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1968 } |
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1969 query.append(" ORDER BY \"TABLE_SCHEM\""); |
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1970 |
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1971 return executeMetaDataQuery(query.toString()); |
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1972 } |
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1973 |
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1974 /** |
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1975 * Get the catalog names available in this database. The results |
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1976 * are ordered by catalog name. |
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1977 * |
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1978 * <P>The catalog column is: |
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1979 * <OL> |
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1980 * <LI><B>TABLE_CAT</B> String => catalog name |
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1981 * </OL> |
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1982 * |
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1983 * |
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1984 * @return ResultSet each row has a single String column that is a |
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1985 * catalog name |
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1986 * @throws SQLException if a database error occurs |
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1987 */ |
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1988 @Override |
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1989 public ResultSet getCatalogs() throws SQLException { |
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1990 // MonetDB does NOT support catalogs. |
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1991 // Return a resultset with no rows |
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352
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1992 return executeMetaDataQuery("SELECT cast(null as char(1)) AS \"TABLE_CAT\" WHERE 1=0"); |
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1993 } |
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1994 |
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1995 /** |
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1996 * Get the table types available in this database. |
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1997 * The results are ordered by table type. |
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1998 * |
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1999 * <P>The table type is: |
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2000 * <OL> |
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2001 * <LI><B>TABLE_TYPE</B> String => table type. Typical types are "TABLE", |
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2002 * "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", |
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2003 * "LOCAL TEMPORARY", "ALIAS", "SYNONYM". |
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2004 * </OL> |
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2005 * |
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2006 * @return ResultSet each row has a single String column that is a table type |
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2007 * @throws SQLException if a database error occurs |
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2008 */ |
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2009 @Override |
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2010 public ResultSet getTableTypes() throws SQLException { |
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2011 // as of Jul2015 release we have a new table: sys.table_types with more table types |
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2012 String query = "SELECT \"table_type_name\" AS \"TABLE_TYPE\" FROM \"sys\".\"table_types\" ORDER BY 1"; |
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2013 |
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2014 // For old (pre jul2015) servers fall back to old behavior. |
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2015 if ("11.19.15".compareTo(getDatabaseProductVersion()) >= 0) |
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2016 query = "SELECT 'SESSION TABLE' AS \"TABLE_TYPE\" UNION ALL " + |
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2017 "SELECT 'SESSION VIEW' UNION ALL " + |
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2018 "SELECT 'SYSTEM SESSION TABLE' UNION ALL " + |
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2019 "SELECT 'SYSTEM SESSION VIEW' UNION ALL " + |
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2020 "SELECT 'SYSTEM TABLE' UNION ALL " + |
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2021 "SELECT 'SYSTEM VIEW' UNION ALL " + |
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2022 "SELECT 'TABLE' UNION ALL " + |
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2023 "SELECT 'VIEW' ORDER BY 1"; |
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2024 |
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2025 return executeMetaDataQuery(query); |
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2026 } |
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2027 |
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2028 /** |
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2029 * Get a description of table columns available in a catalog. |
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2030 * |
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2031 * <P>Only column descriptions matching the catalog, schema, table |
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2032 * and column name criteria are returned. They are ordered by |
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2033 * TABLE_SCHEM, TABLE_NAME and ORDINAL_POSITION. |
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|
2034 * |
|
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|
2035 * <P>Each column description has the following columns: |
|
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|
2036 * <OL> |
|
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2037 * <LI><B>TABLE_CAT</B> String => table catalog (may be null) |
|
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2038 * <LI><B>TABLE_SCHEM</B> String => table schema (may be null) |
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|
2039 * <LI><B>TABLE_NAME</B> String => table name |
|
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|
2040 * <LI><B>COLUMN_NAME</B> String => column name |
|
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|
2041 * <LI><B>DATA_TYPE</B> int => SQL type from java.sql.Types |
|
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|
2042 * <LI><B>TYPE_NAME</B> String => Data source dependent type name |
|
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2043 * <LI><B>COLUMN_SIZE</B> int => column size. For char or date |
|
0
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changeset
|
2044 * types this is the maximum number of characters, for numeric or |
|
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diff
changeset
|
2045 * decimal types this is precision. |
|
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|
2046 * <LI><B>BUFFER_LENGTH</B> is not used. |
|
194
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|
2047 * <LI><B>DECIMAL_DIGITS</B> int => the number of fractional digits |
|
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186
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|
2048 * <LI><B>NUM_PREC_RADIX</B> int => Radix (typically either 10 or 2) |
|
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2049 * <LI><B>NULLABLE</B> int => is NULL allowed? |
|
0
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|
2050 * <UL> |
|
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|
2051 * <LI> columnNoNulls - might not allow NULL values |
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|
2052 * <LI> columnNullable - definitely allows NULL values |
|
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|
2053 * <LI> columnNullableUnknown - nullability unknown |
|
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|
2054 * </UL> |
|
194
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2055 * <LI><B>REMARKS</B> String => comment describing column (may be null) |
|
1296dbcc4958
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|
2056 * <LI><B>COLUMN_DEF</B> String => default value (may be null) |
|
1296dbcc4958
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2057 * <LI><B>SQL_DATA_TYPE</B> int => unused |
|
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2058 * <LI><B>SQL_DATETIME_SUB</B> int => unused |
|
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2059 * <LI><B>CHAR_OCTET_LENGTH</B> int => for char types the |
|
0
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|
2060 * maximum number of bytes in the column |
|
194
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2061 * <LI><B>ORDINAL_POSITION</B> int => index of column in table |
|
0
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|
2062 * (starting at 1) |
|
194
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2063 * <LI><B>IS_NULLABLE</B> String => "NO" means column definitely |
|
0
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|
2064 * does not allow NULL values; "YES" means the column might |
|
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|
2065 * allow NULL values. An empty string means nobody knows. |
|
194
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2066 * <LI><B>SCOPE_CATALOG</B> String => catalog of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF) |
|
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|
2067 * <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) |
|
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186
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|
2068 * <LI><B>SCOPE_TABLE</B> String => table name that this the scope of a reference attribute (null if the DATA_TYPE isn't REF) |
|
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|
2069 * <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) |
|
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|
2070 * <LI><B>IS_AUTOINCREMENT</B> String => Indicates whether this column is auto incremented |
|
0
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|
2071 * <UL> |
|
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|
2072 * <LI> YES --- if the column is auto incremented |
|
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|
2073 * <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>
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7
diff
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|
2074 * <LI> empty string --- if it cannot be determined whether the column is auto incremented |
|
0
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|
2075 * </UL> |
|
194
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|
2076 * <LI><B>IS_GENERATEDCOLUMN</B> String => Indicates whether this is a generated column |
|
0
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|
2077 * <UL> |
|
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|
2078 * <LI> YES --- if this a generated column |
|
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|
2079 * <LI> NO --- if this not a generated column |
|
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2080 * <LI> empty string --- if it cannot be determined whether this is a generated column |
|
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|
2081 * </UL> |
|
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|
2082 * </OL> |
|
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|
2083 * |
|
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|
2084 * @param catalog - a catalog name; must match the catalog name as it is stored in the database; |
|
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|
2085 * "" retrieves those without a catalog; null means that the |
|
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|
2086 * catalog name should not be used to narrow the search |
|
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|
2087 * @param schemaPattern - a schema name pattern; must match the schema name as it is stored |
|
a5a898f6886c
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|
2088 * in the database; "" retrieves those without a schema; |
|
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|
2089 * null means that the schema name should not be used to narrow the search |
|
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|
2090 * @param tableNamePattern - a table name pattern; must match the table name as it is stored in the database |
|
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|
2091 * 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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diff
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|
2092 * 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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|
2093 * @param columnNamePattern - a column name pattern; must match the column name as it is stored in the database |
|
371
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|
2094 * 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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|
2095 * @return ResultSet - each row is a column description |
|
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|
2096 * @throws SQLException if a database error occurs |
|
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|
2097 * @see #getSearchStringEscape |
|
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|
2098 */ |
|
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|
2099 @Override |
|
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|
2100 public ResultSet getColumns( |
|
295
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|
2101 final String catalog, |
|
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|
2102 final String schemaPattern, |
|
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|
2103 final String tableNamePattern, |
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|
2104 final String columnNamePattern |
|
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|
2105 ) throws SQLException |
|
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|
2106 { |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
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|
2107 final boolean useCommentsTable = con.commentsTableExists(); |
|
295
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|
2108 final StringBuilder query = new StringBuilder(2450); |
|
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|
2109 query.append("SELECT cast(null as char(1)) AS \"TABLE_CAT\", " + |
|
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|
2110 "s.\"name\" AS \"TABLE_SCHEM\", " + |
|
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|
2111 "t.\"name\" AS \"TABLE_NAME\", " + |
|
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|
2112 "c.\"name\" AS \"COLUMN_NAME\", " + |
|
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|
2113 "cast(").append(MonetDriver.getSQLTypeMap("c.\"type\"")).append(" AS int) AS \"DATA_TYPE\", " + |
|
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|
2114 "c.\"type\" AS \"TYPE_NAME\", " + |
|
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|
2115 "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>
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323
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|
2116 "cast(0 as int) AS \"BUFFER_LENGTH\", " + |
|
302
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|
2117 "c.\"type_scale\" AS \"DECIMAL_DIGITS\", " + |
|
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|
2118 "cast(CASE WHEN c.\"type\" IN ('decimal', 'numeric', 'sec_interval') THEN 10 " + |
|
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|
2119 "WHEN c.\"type\" IN ('int', 'smallint', 'tinyint', 'bigint', 'hugeint', 'float', 'real', 'double', 'oid', 'wrd') THEN 2 " + |
|
0
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|
2120 "ELSE 0 END AS int) AS \"NUM_PREC_RADIX\", " + |
|
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|
2121 "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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|
2122 .append(" WHEN false THEN ").append(ResultSetMetaData.columnNoNulls).append(" END AS int) AS \"NULLABLE\", ") |
|
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|
2123 .append(useCommentsTable ? "cm.\"remark\"" : "cast(null AS varchar(9999))").append(" AS \"REMARKS\", " + |
|
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|
2124 "c.\"default\" AS \"COLUMN_DEF\", " + |
|
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|
2125 "cast(0 as int) AS \"SQL_DATA_TYPE\", " + |
|
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|
2126 "cast(0 as int) AS \"SQL_DATETIME_SUB\", " + |
|
302
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|
2127 "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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2128 "cast(c.\"number\" + 1 as int) AS \"ORDINAL_POSITION\", " + |
|
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|
2129 "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())
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2130 "cast(null AS char(1)) AS \"SCOPE_CATALOG\", " + |
|
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2131 "cast(null AS char(1)) AS \"SCOPE_SCHEMA\", " + |
|
7cbd20ff628c
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|
2132 "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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|
2133 "cast(null AS smallint) AS \"SOURCE_DATA_TYPE\", " + |
|
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2134 "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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2135 "cast('NO' AS varchar(3)) AS \"IS_GENERATEDCOLUMN\" " + |
|
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2136 "FROM \"sys\".\"columns\" c " + |
|
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|
2137 "JOIN \"sys\".\"tables\" t ON c.\"table_id\" = t.\"id\" " + |
|
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|
2138 "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
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2139 if (useCommentsTable) { |
|
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|
2140 query.append("LEFT OUTER JOIN \"sys\".\"comments\" cm ON c.\"id\" = cm.\"id\" "); |
|
215
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2141 } |
|
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|
2142 |
|
216
116b5a149fb4
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2143 if (catalog != null && !catalog.isEmpty()) { |
|
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2144 // non-empty catalog selection. |
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|
2145 // as we do not support catalogs this always results in no rows returned |
|
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2146 query.append("WHERE 1=0"); |
|
216
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2147 } else { |
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|
2148 boolean needWhere = true; |
|
323
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2149 if (schemaPattern != null && !schemaPattern.equals("%")) { |
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2150 query.append("WHERE s.\"name\" ").append(composeMatchPart(schemaPattern)); |
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2151 needWhere = false; |
|
216
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2152 } |
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323
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2153 if (tableNamePattern != null && !tableNamePattern.equals("%")) { |
|
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2154 query.append(needWhere ? "WHERE" : " AND") |
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|
2155 .append(" t.\"name\" ").append(composeMatchPart(tableNamePattern)); |
|
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2156 needWhere = false; |
|
216
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2157 } |
|
323
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|
2158 if (columnNamePattern != null && !columnNamePattern.equals("%")) { |
|
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|
2159 query.append(needWhere ? "WHERE" : " AND") |
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|
2160 .append(" c.\"name\" ").append(composeMatchPart(columnNamePattern)); |
|
216
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2161 } |
|
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|
2162 } |
|
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|
2163 |
|
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changeset
|
2164 query.append(" ORDER BY \"TABLE_SCHEM\", \"TABLE_NAME\", \"ORDINAL_POSITION\""); |
|
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|
2165 |
|
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|
2166 return executeMetaDataQuery(query.toString()); |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2167 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2168 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2169 /** |
|
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parents:
diff
changeset
|
2170 * Get a description of the access rights for a table's columns. |
|
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parents:
diff
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|
2171 * MonetDB doesn't have this level of access rights. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2172 * |
|
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|
2173 * <P>Only privileges matching the column name criteria are |
|
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parents:
diff
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|
2174 * returned. They are ordered by COLUMN_NAME and PRIVILEGE. |
|
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parents:
diff
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|
2175 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2176 * <P>Each privilige description has the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2177 * <OL> |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
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|
2178 * <LI><B>TABLE_CAT</B> String => table catalog (may be null) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
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|
2179 * <LI><B>TABLE_SCHEM</B> String => table schema (may be null) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
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|
2180 * <LI><B>TABLE_NAME</B> String => table name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
diff
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|
2181 * <LI><B>COLUMN_NAME</B> String => column name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
diff
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|
2182 * <LI><B>GRANTOR</B> => grantor of access (may be null) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
diff
changeset
|
2183 * <LI><B>GRANTEE</B> String => grantee of access |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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|
2184 * <LI><B>PRIVILEGE</B> String => name of access (SELECT, |
|
0
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|
2185 * INSERT, UPDATE, REFRENCES, ...) |
|
194
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Resolved javadoc many errors and warnings, such as:
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|
2186 * <LI><B>IS_GRANTABLE</B> String => "YES" if grantee is permitted |
|
0
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parents:
diff
changeset
|
2187 * to grant to others; "NO" if not; null if unknown |
|
a5a898f6886c
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parents:
diff
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|
2188 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2189 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2190 * @param catalog a catalog name; "" retrieves those without a catalog |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2191 * @param schemaPattern a schema name; "" retrieves those without a schema |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2192 * @param tableNamePattern 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
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|
2193 * 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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|
2194 * @param columnNamePattern a column name pattern |
|
371
67fa5c6147d7
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|
2195 * 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
|
2196 * @return ResultSet each row is a column privilege description |
|
a5a898f6886c
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|
2197 * @see #getSearchStringEscape |
|
a5a898f6886c
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|
2198 * @throws SQLException if a database error occurs |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2199 */ |
|
a5a898f6886c
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|
2200 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2201 public ResultSet getColumnPrivileges( |
|
295
003ae6d881db
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294
diff
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|
2202 final String catalog, |
|
003ae6d881db
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294
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|
2203 final String schemaPattern, |
|
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|
2204 final String tableNamePattern, |
|
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|
2205 final String columnNamePattern |
|
0
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|
2206 ) throws SQLException |
|
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|
2207 { |
|
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
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|
2208 final boolean usePrivilege_codesTable = con.privilege_codesTableExists(); |
|
295
003ae6d881db
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|
2209 final StringBuilder query = new StringBuilder(1100); |
|
0
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|
2210 query.append("SELECT cast(null as char(1)) AS \"TABLE_CAT\", " + |
|
302
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|
2211 "s.\"name\" AS \"TABLE_SCHEM\", " + |
|
1b6c514106ce
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|
2212 "t.\"name\" AS \"TABLE_NAME\", " + |
|
1b6c514106ce
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|
2213 "c.\"name\" AS \"COLUMN_NAME\", " + |
|
1b6c514106ce
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|
2214 "grantors.\"name\" AS \"GRANTOR\", " + |
|
1b6c514106ce
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|
2215 "grantees.\"name\" AS \"GRANTEE\", ") |
|
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|
2216 .append(usePrivilege_codesTable ? "pc.\"privilege_code_name\"" : |
|
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|
2217 "cast(CASE p.\"privileges\" " + |
|
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|
2218 "WHEN 1 THEN 'SELECT' " + |
|
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|
2219 "WHEN 2 THEN 'UPDATE' " + |
|
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|
2220 "WHEN 4 THEN 'INSERT' " + |
|
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|
2221 "WHEN 8 THEN 'DELETE' " + |
|
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2222 "WHEN 16 THEN 'EXECUTE' " + |
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2223 "WHEN 32 THEN 'GRANT' " + |
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2224 "ELSE NULL " + |
|
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2225 "END AS varchar(7))").append(" AS \"PRIVILEGE\", " + |
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2226 "cast(CASE p.\"grantable\" " + |
|
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2227 "WHEN 0 THEN 'NO' " + |
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|
2228 "WHEN 1 THEN 'YES' " + |
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2229 "ELSE NULL " + |
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2230 "END AS varchar(3)) AS \"IS_GRANTABLE\" " + |
|
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2231 "FROM \"sys\".\"privileges\" p " + |
|
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2232 "JOIN \"sys\".\"columns\" c ON p.\"obj_id\" = c.\"id\" " + |
|
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2233 "JOIN \"sys\".\"tables\" t ON c.\"table_id\" = t.\"id\" " + |
|
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2234 "JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" " + |
|
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2235 "JOIN \"sys\".\"auths\" grantors ON p.\"grantor\" = grantors.\"id\" " + |
|
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|
2236 "JOIN \"sys\".\"auths\" grantees ON p.\"auth_id\" = grantees.\"id\" "); |
|
219
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2237 if (usePrivilege_codesTable) { |
|
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|
2238 query.append("JOIN \"sys\".\"privilege_codes\" pc ON p.\"privileges\" = pc.\"privilege_code_id\" "); |
|
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2239 } |
|
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2240 |
|
216
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2241 if (catalog != null && !catalog.isEmpty()) { |
|
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2242 // non-empty catalog selection. |
|
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2243 // as we do not support catalogs this always results in no rows returned |
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2244 query.append("WHERE 1=0"); |
|
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2245 } else { |
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2246 boolean needWhere = true; |
|
323
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2247 if (schemaPattern != null && !schemaPattern.equals("%")) { |
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2248 query.append("WHERE s.\"name\" ").append(composeMatchPart(schemaPattern)); |
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2249 needWhere = false; |
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2250 } |
|
323
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2251 if (tableNamePattern != null && !tableNamePattern.equals("%")) { |
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2252 query.append(needWhere ? "WHERE" : " AND") |
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|
2253 .append(" t.\"name\" ").append(composeMatchPart(tableNamePattern)); |
|
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|
2254 needWhere = false; |
|
216
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2255 } |
|
323
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|
2256 if (columnNamePattern != null && !columnNamePattern.equals("%")) { |
|
372
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|
2257 query.append(needWhere ? "WHERE" : " AND") |
|
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|
2258 .append(" c.\"name\" ").append(composeMatchPart(columnNamePattern)); |
|
216
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|
2259 } |
|
0
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|
2260 } |
|
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diff
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|
2261 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
2262 query.append(" ORDER BY \"TABLE_SCHEM\", \"TABLE_NAME\", \"COLUMN_NAME\", \"PRIVILEGE\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2263 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2264 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2265 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2266 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2267 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2268 * Get a description of the access rights for each table available |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2269 * in a catalog. |
|
a5a898f6886c
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|
2270 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2271 * <P>Only privileges matching the schema and table name |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2272 * criteria are returned. They are ordered by TABLE_SCHEM, |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2273 * TABLE_NAME, and PRIVILEGE. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2274 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2275 * <P>Each privilege description has the following columns: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2276 * <OL> |
|
194
1296dbcc4958
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|
2277 * <LI><B>TABLE_CAT</B> String => table catalog (may be null) |
|
1296dbcc4958
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|
2278 * <LI><B>TABLE_SCHEM</B> String => table schema (may be null) |
|
1296dbcc4958
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|
2279 * <LI><B>TABLE_NAME</B> String => table name |
|
1296dbcc4958
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|
2280 * <LI><B>GRANTOR</B> => grantor of access (may be null) |
|
1296dbcc4958
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|
2281 * <LI><B>GRANTEE</B> String => grantee of access |
|
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|
2282 * <LI><B>PRIVILEGE</B> String => name of access (SELECT, |
|
0
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|
2283 * INSERT, UPDATE, REFRENCES, ...) |
|
194
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|
2284 * <LI><B>IS_GRANTABLE</B> String => "YES" if grantee is permitted |
|
0
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|
2285 * to grant to others; "NO" if not; null if unknown |
|
a5a898f6886c
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|
2286 * </OL> |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2287 * |
|
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|
2288 * @param catalog a catalog name; "" retrieves those without a catalog |
|
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|
2289 * @param schemaPattern a schema name pattern; "" retrieves those without a schema |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2290 * @param tableNamePattern a table name pattern |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
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diff
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|
2291 * 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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|
2292 * @return ResultSet each row is a table privilege description |
|
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|
2293 * @see #getSearchStringEscape |
|
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|
2294 * @throws SQLException if a database error occurs |
|
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|
2295 */ |
|
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|
2296 @Override |
|
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|
2297 public ResultSet getTablePrivileges( |
|
295
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|
2298 final String catalog, |
|
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|
2299 final String schemaPattern, |
|
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|
2300 final String tableNamePattern |
|
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|
2301 ) throws SQLException |
|
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|
2302 { |
|
332
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
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|
2303 final boolean usePrivilege_codesTable = con.privilege_codesTableExists(); |
|
295
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|
2304 final StringBuilder query = new StringBuilder(1000); |
|
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|
2305 query.append("SELECT cast(null as char(1)) AS \"TABLE_CAT\", " + |
|
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|
2306 "s.\"name\" AS \"TABLE_SCHEM\", " + |
|
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|
2307 "t.\"name\" AS \"TABLE_NAME\", " + |
|
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|
2308 "grantors.\"name\" AS \"GRANTOR\", " + |
|
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|
2309 "grantees.\"name\" AS \"GRANTEE\", ") |
|
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|
2310 .append(usePrivilege_codesTable ? "pc.\"privilege_code_name\"" : |
|
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|
2311 "cast(CASE p.\"privileges\" " + |
|
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|
2312 "WHEN 1 THEN 'SELECT' " + |
|
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|
2313 "WHEN 2 THEN 'UPDATE' " + |
|
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|
2314 "WHEN 4 THEN 'INSERT' " + |
|
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|
2315 "WHEN 8 THEN 'DELETE' " + |
|
a5a898f6886c
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|
2316 "WHEN 16 THEN 'EXECUTE' " + |
|
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|
2317 "WHEN 32 THEN 'GRANT' " + |
|
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|
2318 "ELSE NULL " + |
|
219
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2319 "END AS varchar(7))").append(" AS \"PRIVILEGE\", " + |
|
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|
2320 "cast(CASE p.\"grantable\" " + |
|
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|
2321 "WHEN 0 THEN 'NO' " + |
|
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|
2322 "WHEN 1 THEN 'YES' " + |
|
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|
2323 "ELSE NULL " + |
|
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|
2324 "END AS varchar(3)) AS \"IS_GRANTABLE\" " + |
|
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|
2325 "FROM \"sys\".\"privileges\" p " + |
|
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|
2326 "JOIN \"sys\".\"tables\" t ON p.\"obj_id\" = t.\"id\" " + |
|
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|
2327 "JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" " + |
|
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|
2328 "JOIN \"sys\".\"auths\" grantors ON p.\"grantor\" = grantors.\"id\" " + |
|
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|
2329 "JOIN \"sys\".\"auths\" grantees ON p.\"auth_id\" = grantees.\"id\" "); |
|
219
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|
2330 if (usePrivilege_codesTable) { |
|
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|
2331 query.append("JOIN \"sys\".\"privilege_codes\" pc ON p.\"privileges\" = pc.\"privilege_code_id\" "); |
|
219
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|
2332 } |
|
0
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|
2333 |
|
216
116b5a149fb4
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|
2334 if (catalog != null && !catalog.isEmpty()) { |
|
299
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|
2335 // non-empty catalog selection. |
|
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|
2336 // as we do not support catalogs this always results in no rows returned |
|
372
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|
2337 query.append("WHERE 1=0"); |
|
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2338 } else { |
|
372
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|
2339 boolean needWhere = true; |
|
323
8701024a9bb0
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|
2340 if (schemaPattern != null && !schemaPattern.equals("%")) { |
|
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|
2341 query.append("WHERE s.\"name\" ").append(composeMatchPart(schemaPattern)); |
|
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|
2342 needWhere = false; |
|
216
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2343 } |
|
323
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|
2344 if (tableNamePattern != null && !tableNamePattern.equals("%")) { |
|
372
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|
2345 query.append(needWhere ? "WHERE" : " AND") |
|
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|
2346 .append(" t.\"name\" ").append(composeMatchPart(tableNamePattern)); |
|
216
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|
2347 } |
|
0
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|
2348 } |
|
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|
2349 |
|
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changeset
|
2350 query.append(" ORDER BY \"TABLE_SCHEM\", \"TABLE_NAME\", \"PRIVILEGE\""); |
|
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changeset
|
2351 |
|
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changeset
|
2352 return executeMetaDataQuery(query.toString()); |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2353 } |
|
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diff
changeset
|
2354 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
2355 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2356 * Get a description of a table's optimal set of columns that |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2357 * uniquely identifies a row. They are ordered by SCOPE. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2358 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
2359 * <P>Each column description has the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2360 * <OL> |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2361 * <LI><B>SCOPE</B> short => actual scope of result |
|
0
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|
2362 * <UL> |
|
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parents:
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|
2363 * <LI> bestRowTemporary - very temporary, while using row |
|
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|
2364 * <LI> bestRowTransaction - valid for remainder of current transaction |
|
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changeset
|
2365 * <LI> bestRowSession - valid for remainder of current session |
|
a5a898f6886c
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|
2366 * </UL> |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
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|
2367 * <LI><B>COLUMN_NAME</B> String => column name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
diff
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|
2368 * <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>
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186
diff
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|
2369 * <LI><B>TYPE_NAME</B> String => Data source dependent type name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
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|
2370 * <LI><B>COLUMN_SIZE</B> int => precision |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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186
diff
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|
2371 * <LI><B>BUFFER_LENGTH</B> int => not used |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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|
2372 * <LI><B>DECIMAL_DIGITS</B> short => scale |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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|
2373 * <LI><B>PSEUDO_COLUMN</B> short => is this a pseudo column |
|
0
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changeset
|
2374 * like an Oracle ROWID |
|
a5a898f6886c
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parents:
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|
2375 * <UL> |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2376 * <LI> bestRowUnknown - may or may not be pseudo column |
|
a5a898f6886c
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|
2377 * <LI> bestRowNotPseudo - is NOT a pseudo column |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2378 * <LI> bestRowPseudo - is a pseudo column |
|
a5a898f6886c
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|
2379 * </UL> |
|
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parents:
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|
2380 * </OL> |
|
a5a898f6886c
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parents:
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|
2381 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2382 * @param catalog a catalog name; "" retrieves those without a catalog |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2383 * @param schema a schema name; "" retrieves those without a schema |
|
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|
2384 * @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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|
2385 * 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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|
2386 * @param scope the scope of interest; use same values as SCOPE |
|
a5a898f6886c
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|
2387 * @param nullable include columns that are nullable? |
|
a5a898f6886c
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|
2388 * @return ResultSet each row is a column description |
|
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|
2389 * @throws SQLException if a database error occurs |
|
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|
2390 */ |
|
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|
2391 @Override |
|
a5a898f6886c
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|
2392 public ResultSet getBestRowIdentifier( |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
2393 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
2394 final String schema, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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changeset
|
2395 final String table, |
|
003ae6d881db
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|
2396 final int scope, |
|
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|
2397 final boolean nullable |
|
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|
2398 ) throws SQLException |
|
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|
2399 { |
|
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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|
2400 // 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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|
2401 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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|
2402 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.
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|
2403 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.
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|
2404 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.
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|
2405 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.
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323
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changeset
|
2406 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.
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323
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|
2407 } |
|
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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|
2408 } 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>
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323
diff
changeset
|
2409 // 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.
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323
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|
2410 } 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>
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|
2411 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
|
2412 } |
|
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
|
2413 |
|
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
|
2414 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
|
2415 // 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
|
2416 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
|
2417 "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
|
2418 "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
|
2419 "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
|
2420 "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
|
2421 "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
|
2422 "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
|
2423 "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
|
2424 "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
|
2425 "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
|
2426 "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
|
2427 "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
|
2428 "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
|
2429 "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
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|
2430 // 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.
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parents:
diff
changeset
|
2431 |
|
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
|
2432 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
298
diff
changeset
|
2433 // non-empty catalog selection. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2434 // 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
|
2435 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
|
2436 } 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
|
2437 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
|
2438 || 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
|
2439 || 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
|
2440 if (schema != null && !schema.equals("%")) { |
|
302
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
2441 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
|
2442 } |
|
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
|
2443 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
|
2444 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
|
2445 } |
|
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
|
2446 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
|
2447 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
|
2448 } |
|
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 } 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
|
2450 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
|
2451 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2452 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2453 |
|
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
|
2454 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
|
2455 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2456 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2457 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2458 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2459 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2460 * 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
|
2461 * 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
|
2462 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2463 * <P>Each column description has the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2464 * <OL> |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
2465 * <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
|
2466 * <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
|
2467 * <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
|
2468 * <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
|
2469 * <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
|
2470 * <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
|
2471 * <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
|
2472 * <LI><B>PSEUDO_COLUMN</B> short => is this a pseudo column like an Oracle ROWID |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2473 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2474 * <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
|
2475 * <LI> versionColumnNotPseudo - is NOT a pseudo column |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2476 * <LI> versionColumnPseudo - is a pseudo column |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2477 * </UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2478 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2479 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2480 * @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
|
2481 * @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
|
2482 * @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
|
2483 * 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
|
2484 * @return ResultSet each row is a column description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2485 * @throws SQLException if a database error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2486 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2487 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2488 public ResultSet getVersionColumns( |
|
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
|
2489 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
|
2490 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
|
2491 final String table |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2492 ) throws SQLException |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2493 { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2494 // MonetDB currently does not have columns which update themselves, so return an empty ResultSet |
|
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
|
2495 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
|
2496 "SELECT cast(0 as smallint) AS \"SCOPE\", " + |
|
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
|
2497 "cast(null as char(1)) AS \"COLUMN_NAME\", " + |
|
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
|
2498 "cast(0 as int) AS \"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
|
2499 "cast(null as char(1)) AS \"TYPE_NAME\", " + |
|
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
|
2500 "cast(0 as int) AS \"COLUMN_SIZE\", " + |
|
7cbd20ff628c
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|
2501 "cast(0 as int) AS \"BUFFER_LENGTH\", " + |
|
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|
2502 "cast(0 as smallint) AS \"DECIMAL_DIGITS\", " + |
|
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|
2503 "cast(0 as smallint) AS \"PSEUDO_COLUMN\" " + |
|
352
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Remove spaces from static SQL predicates: 1 = 0 and 1 = 1.
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|
2504 "WHERE 1=0"; |
|
0
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|
2505 |
|
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changeset
|
2506 return executeMetaDataQuery(query); |
|
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|
2507 } |
|
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|
2508 |
|
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parents:
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changeset
|
2509 /** |
|
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parents:
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changeset
|
2510 * Get a description of a table's primary key columns. They |
|
a5a898f6886c
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parents:
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changeset
|
2511 * are ordered by COLUMN_NAME. |
|
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parents:
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changeset
|
2512 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
2513 * <P>Each column description has the following columns: |
|
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2514 * <OL> |
|
194
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Resolved javadoc many errors and warnings, such as:
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2515 * <LI><B>TABLE_CAT</B> String => table catalog (may be null) |
|
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2516 * <LI><B>TABLE_SCHEM</B> String => table schema (may be null) |
|
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2517 * <LI><B>TABLE_NAME</B> String => table name |
|
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2518 * <LI><B>COLUMN_NAME</B> String => column name |
|
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|
2519 * <LI><B>KEY_SEQ</B> short => sequence number within primary key |
|
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2520 * <LI><B>PK_NAME</B> String => primary key name (may be null) |
|
0
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|
2521 * </OL> |
|
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parents:
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|
2522 * |
|
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|
2523 * @param catalog a catalog name; "" retrieves those without a catalog |
|
245
55375d489024
Corrected return values of DatabaseMetaData methods allTablesAreSelectable() and allProceduresAreCallable().
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2524 * @param schema a schema name pattern; "" retrieves those without a schema |
|
0
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|
2525 * @param table a table name |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
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370
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|
2526 * 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
|
2527 * @return ResultSet each row is a primary key column description |
|
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parents:
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changeset
|
2528 * @throws SQLException if a database error occurs |
|
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parents:
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|
2529 */ |
|
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changeset
|
2530 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2531 public ResultSet getPrimaryKeys( |
|
295
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Add "final" keyword to method arguments and local variables where possible.
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|
2532 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
2533 final String schema, |
|
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Add "final" keyword to method arguments and local variables where possible.
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|
2534 final String table |
|
0
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parents:
diff
changeset
|
2535 ) throws SQLException |
|
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parents:
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|
2536 { |
|
295
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diff
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|
2537 final StringBuilder query = new StringBuilder(600); |
|
217
7cbd20ff628c
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
216
diff
changeset
|
2538 query.append("SELECT cast(null AS char(1)) AS \"TABLE_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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|
2539 "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
changeset
|
2540 "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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300
diff
changeset
|
2541 "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
|
2542 "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
|
2543 " 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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300
diff
changeset
|
2544 "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
|
2545 "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
|
2546 "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
|
2547 "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
|
2548 "WHERE k.\"type\" = 0"); // only primary keys (type = 0) |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2549 |
|
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
|
2550 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
298
diff
changeset
|
2551 // non-empty catalog selection. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2552 // 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
|
2553 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
|
2554 } 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
|
2555 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
|
2556 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
|
2557 } |
|
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
|
2558 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
|
2559 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
|
2560 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2561 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2562 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2563 query.append(" ORDER BY \"TABLE_SCHEM\", \"TABLE_NAME\", \"COLUMN_NAME\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2564 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2565 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2566 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2567 |
|
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
|
2568 // same SQL query used by getImportedKeys(), getExportedKeys() and getCrossReference() |
|
186
4767b005a531
Making variables private where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
177
diff
changeset
|
2569 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>
parents:
216
diff
changeset
|
2570 "SELECT cast(null AS char(1)) AS \"PKTABLE_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
|
2571 "pkschema.\"name\" AS \"PKTABLE_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
|
2572 "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>
parents:
300
diff
changeset
|
2573 "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>
parents:
216
diff
changeset
|
2574 "cast(null AS char(1)) AS \"FKTABLE_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>
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300
diff
changeset
|
2575 "fkschema.\"name\" AS \"FKTABLE_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>
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300
diff
changeset
|
2576 "fktable.\"name\" AS \"FKTABLE_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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300
diff
changeset
|
2577 "fkkeycol.\"name\" AS \"FKCOLUMN_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
|
2578 "cast(1 + \"pkkeycol\".\"nr\" AS smallint) AS \"KEY_SEQ\", " + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2579 DatabaseMetaData.importedKeyNoAction + " AS \"UPDATE_RULE\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2580 DatabaseMetaData.importedKeyNoAction + " AS \"DELETE_RULE\", " + |
|
302
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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300
diff
changeset
|
2581 "fkkey.\"name\" AS \"FK_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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300
diff
changeset
|
2582 "pkkey.\"name\" AS \"PK_NAME\", " + |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2583 DatabaseMetaData.importedKeyNotDeferrable + " AS \"DEFERRABILITY\" " + |
|
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
|
2584 "FROM \"sys\".\"keys\" pkkey " + |
|
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
|
2585 "JOIN \"sys\".\"objects\" pkkeycol ON pkkey.\"id\" = pkkeycol.\"id\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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300
diff
changeset
|
2586 "JOIN \"sys\".\"tables\" pktable ON pktable.\"id\" = pkkey.\"table_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
|
2587 "JOIN \"sys\".\"schemas\" pkschema ON pkschema.\"id\" = pktable.\"schema_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
|
2588 "JOIN \"sys\".\"keys\" fkkey ON fkkey.\"rkey\" = pkkey.\"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
|
2589 "JOIN \"sys\".\"objects\" fkkeycol ON (fkkey.\"id\" = fkkeycol.\"id\" AND fkkeycol.\"nr\" = pkkeycol.\"nr\") " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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300
diff
changeset
|
2590 "JOIN \"sys\".\"tables\" fktable ON fktable.\"id\" = fkkey.\"table_id\" " + |
|
1b6c514106ce
Added table aliases and use them in all meta data SQL queries to reduce query size.
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300
diff
changeset
|
2591 "JOIN \"sys\".\"schemas\" fkschema ON fkschema.\"id\" = fktable.\"schema_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
|
2592 "WHERE fkkey.\"rkey\" > 0"; // exclude invalid key references, such as -1 |
|
0
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2593 |
|
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|
2594 /** |
|
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|
2595 * Get a description of the primary key columns that are |
|
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|
2596 * referenced by a table's foreign key columns (the primary keys |
|
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|
2597 * imported by a table). They are ordered by PKTABLE_CAT, |
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|
2598 * PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ. |
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|
2599 * |
|
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|
2600 * <P>Each primary key column description has the following columns: |
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|
2601 * <OL> |
|
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2602 * <LI><B>PKTABLE_CAT</B> String => primary key table catalog |
|
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2603 * being imported (may be null) |
|
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2604 * <LI><B>PKTABLE_SCHEM</B> String => primary key table schema |
|
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2605 * being imported (may be null) |
|
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2606 * <LI><B>PKTABLE_NAME</B> String => primary key table name |
|
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2607 * being imported |
|
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2608 * <LI><B>PKCOLUMN_NAME</B> String => primary key column name |
|
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2609 * being imported |
|
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2610 * <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be null) |
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2611 * <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be null) |
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2612 * <LI><B>FKTABLE_NAME</B> String => foreign key table name |
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2613 * <LI><B>FKCOLUMN_NAME</B> String => foreign key column name |
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2614 * <LI><B>KEY_SEQ</B> short => sequence number within foreign key |
|
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2615 * (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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2616 * <LI><B>UPDATE_RULE</B> short => What happens to |
|
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2617 * foreign key when primary is updated: |
|
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2618 * <UL> |
|
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2619 * <LI> importedKeyNoAction - do not allow update of primary key if it has been imported |
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2620 * <LI> importedKeyCascade - change imported key to agree |
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2621 * with primary key update |
|
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2622 * <LI> importedKeyRestrict - do not allow update of primary |
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2623 * key if it has been imported |
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2624 * <LI> importedKeySetNull - change imported key to NULL if |
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2625 * its primary key has been updated |
|
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2626 * </UL> |
|
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2627 * <LI><B>DELETE_RULE</B> short => What happens to |
|
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|
2628 * the foreign key when primary is deleted. |
|
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|
2629 * <UL> |
|
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|
2630 * <LI> importedKeyNoAction - do not allow delete of primary key if it has been imported |
|
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|
2631 * <LI> importedKeyCascade - delete rows that import a deleted key |
|
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|
2632 * <LI> importedKeyRestrict - do not allow delete of primary |
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|
2633 * key if it has been imported |
|
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|
2634 * <LI> importedKeySetNull - change imported key to NULL if |
|
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|
2635 * its primary key has been deleted |
|
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2636 * </UL> |
|
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2637 * <LI><B>FK_NAME</B> String => foreign key name (may be null) |
|
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2638 * <LI><B>PK_NAME</B> String => primary key name (may be null) |
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|
2639 * <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key constraints be deferred until commit |
|
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|
2640 * <UL> |
|
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|
2641 * <LI> importedKeyInitiallyDeferred - see SQL92 for definition |
|
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|
2642 * <LI> importedKeyInitiallyImmediate - see SQL92 for definition |
|
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|
2643 * <LI> importedKeyNotDeferrable - see SQL92 for definition |
|
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|
2644 * </UL> |
|
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|
2645 * </OL> |
|
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|
2646 * |
|
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|
2647 * @param catalog a catalog name; "" retrieves those without a catalog |
|
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|
2648 * @param schema a schema name pattern; "" retrieves those without a schema |
|
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|
2649 * @param table a table name |
|
371
67fa5c6147d7
Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
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|
2650 * 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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|
2651 * @return ResultSet each row is a primary key column description |
|
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|
2652 * @see #getExportedKeys |
|
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|
2653 * @throws SQLException if a database error occurs |
|
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|
2654 */ |
|
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|
2655 @Override |
|
295
003ae6d881db
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|
2656 public ResultSet getImportedKeys( |
|
003ae6d881db
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|
2657 final String catalog, |
|
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|
2658 final String schema, |
|
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|
2659 final String table |
|
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|
2660 ) throws SQLException |
|
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|
2661 { |
|
295
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|
2662 final StringBuilder query = new StringBuilder(keyQuery.length() + 250); |
|
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|
2663 query.append(keyQuery); |
|
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|
2664 |
|
216
116b5a149fb4
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|
2665 if (catalog != null && !catalog.isEmpty()) { |
|
299
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|
2666 // non-empty catalog selection. |
|
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|
2667 // 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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|
2668 query.append(" AND 1=0"); |
|
216
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|
2669 } else { |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
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diff
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|
2670 if (schema != null && !schema.equals("%")) { |
|
302
1b6c514106ce
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|
2671 query.append(" AND fkschema.\"name\" ").append(composeMatchPart(schema)); |
|
216
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|
2672 } |
|
323
8701024a9bb0
In DatabaseMetaData methods which accept name match patterns, optimise the SQL generation when the pattern equals a: %
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|
2673 if (table != null && !table.equals("%")) { |
|
302
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|
2674 query.append(" AND fktable.\"name\" ").append(composeMatchPart(table)); |
|
216
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|
2675 } |
|
0
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|
2676 } |
|
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|
2677 |
|
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changeset
|
2678 query.append(" ORDER BY \"PKTABLE_SCHEM\", \"PKTABLE_NAME\", \"PK_NAME\", \"KEY_SEQ\""); |
|
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|
2679 |
|
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|
2680 return executeMetaDataQuery(query.toString()); |
|
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|
2681 } |
|
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|
2682 |
|
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|
2683 /** |
|
a5a898f6886c
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|
2684 * Get a description of a foreign key columns that reference a |
|
a5a898f6886c
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|
2685 * table's primary key columns (the foreign keys exported by a table). |
|
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|
2686 * They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ. |
|
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|
2687 * |
|
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|
2688 * <P>Each foreign key column description has the following columns: |
|
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|
2689 * <OL> |
|
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|
2690 * <LI><B>PKTABLE_CAT</B> String => primary key table catalog (may be null) |
|
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|
2691 * <LI><B>PKTABLE_SCHEM</B> String => primary key table schema (may be null) |
|
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|
2692 * <LI><B>PKTABLE_NAME</B> String => primary key table name |
|
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|
2693 * <LI><B>PKCOLUMN_NAME</B> String => primary key column name |
|
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|
2694 * <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be null) |
|
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|
2695 * being exported (may be null) |
|
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|
2696 * <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be null) |
|
0
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|
2697 * being exported (may be null) |
|
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|
2698 * <LI><B>FKTABLE_NAME</B> String => foreign key table name |
|
0
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|
2699 * being exported |
|
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|
2700 * <LI><B>FKCOLUMN_NAME</B> String => foreign key column name |
|
0
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|
2701 * being exported |
|
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|
2702 * <LI><B>KEY_SEQ</B> short => sequence number within foreign key |
|
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|
2703 * (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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|
2704 * <LI><B>UPDATE_RULE</B> short => What happens to |
|
0
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parents:
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changeset
|
2705 * foreign key when primary is updated: |
|
a5a898f6886c
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parents:
diff
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|
2706 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2707 * <LI> importedKeyNoAction - do not allow update of primary key if it has been imported |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2708 * <LI> importedKeyCascade - change imported key to agree |
|
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parents:
diff
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|
2709 * with primary key update |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2710 * <LI> importedKeyRestrict - do not allow update of primary |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2711 * key if it has been imported |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2712 * <LI> importedKeySetNull - change imported key to NULL if |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2713 * its primary key has been updated |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2714 * </UL> |
|
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2715 * <LI><B>DELETE_RULE</B> short => What happens to |
|
0
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parents:
diff
changeset
|
2716 * the foreign key when primary is deleted. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
2717 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2718 * <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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parents:
diff
changeset
|
2719 * <LI> importedKeyCascade - delete rows that import a deleted key |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2720 * <LI> importedKeyRestrict - do not allow delete of primary |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2721 * key if it has been imported |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2722 * <LI> importedKeySetNull - change imported key to NULL if |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2723 * its primary key has been deleted |
|
a5a898f6886c
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parents:
diff
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|
2724 * </UL> |
|
194
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|
2725 * <LI><B>FK_NAME</B> String => foreign key identifier (may be null) |
|
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|
2726 * <LI><B>PK_NAME</B> String => primary key identifier (may be null) |
|
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|
2727 * <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key constraints be deferred until commit |
|
0
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parents:
diff
changeset
|
2728 * <UL> |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2729 * <LI> importedKeyInitiallyDeferred - see SQL92 for definition |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2730 * <LI> importedKeyInitiallyImmediate - see SQL92 for definition |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2731 * <LI> importedKeyNotDeferrable - see SQL92 for definition |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2732 * </UL> |
|
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parents:
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|
2733 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2734 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2735 * @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
|
2736 * @param schema a schema name pattern; "" retrieves those without a schema |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
2737 * @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
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|
2738 * 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
|
2739 * @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
|
2740 * @see #getImportedKeys |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2741 * @throws SQLException if a database error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2742 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2743 @Override |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
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|
2744 public ResultSet getExportedKeys( |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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diff
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|
2745 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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diff
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|
2746 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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|
2747 final String table |
|
295
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Add "final" keyword to method arguments and local variables where possible.
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|
2748 ) throws SQLException |
|
0
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parents:
diff
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|
2749 { |
|
295
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|
2750 final StringBuilder query = new StringBuilder(keyQuery.length() + 250); |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2751 query.append(keyQuery); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2752 |
|
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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|
2753 if (catalog != null && !catalog.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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|
2754 // non-empty catalog selection. |
|
0
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parents:
diff
changeset
|
2755 // 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
|
2756 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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|
2757 } 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
|
2758 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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300
diff
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|
2759 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.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
2760 } |
|
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
|
2761 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
|
2762 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>
parents:
215
diff
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|
2763 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2764 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2765 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2766 query.append(" ORDER BY \"FKTABLE_SCHEM\", \"FKTABLE_NAME\", \"FK_NAME\", \"KEY_SEQ\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
2767 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2768 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2769 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2770 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2771 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2772 * Get a description of the foreign key columns in the foreign key |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2773 * table that reference the primary key columns of the primary key |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2774 * table. (describe how one table imports another's key) This |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2775 * should normally return a single foreign key/primary key pair |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2776 * (most tables only import a foreign key from a table once.) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2777 * They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
2778 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2779 * <P>Each foreign key column description has the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2780 * <OL> |
|
194
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|
2781 * <LI><B>PKTABLE_CAT</B> String => primary key table catalog (may be null) |
|
1296dbcc4958
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|
2782 * <LI><B>PKTABLE_SCHEM</B> String => primary key table schema (may be null) |
|
1296dbcc4958
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|
2783 * <LI><B>PKTABLE_NAME</B> String => primary key table name |
|
1296dbcc4958
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|
2784 * <LI><B>PKCOLUMN_NAME</B> String => primary key column name |
|
1296dbcc4958
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|
2785 * <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be null) |
|
0
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|
2786 * being exported (may be null) |
|
194
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diff
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|
2787 * <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be null) |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
2788 * being exported (may be null) |
|
194
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|
2789 * <LI><B>FKTABLE_NAME</B> String => foreign key table name |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
2790 * being exported |
|
194
1296dbcc4958
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186
diff
changeset
|
2791 * <LI><B>FKCOLUMN_NAME</B> String => foreign key column name |
|
0
a5a898f6886c
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|
2792 * being exported |
|
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2793 * <LI><B>KEY_SEQ</B> short => sequence number within foreign key |
|
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|
2794 * (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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2795 * <LI><B>UPDATE_RULE</B> short => What happens to |
|
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|
2796 * foreign key when primary is updated: |
|
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|
2797 * <UL> |
|
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2798 * <LI> importedKeyNoAction - do not allow update of primary key if it has been imported |
|
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2799 * <LI> importedKeyCascade - change imported key to agree |
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2800 * with primary key update |
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|
2801 * <LI> importedKeyRestrict - do not allow update of primary |
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|
2802 * key if it has been imported |
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|
2803 * <LI> importedKeySetNull - change imported key to NULL if |
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|
2804 * its primary key has been updated |
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2805 * </UL> |
|
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2806 * <LI><B>DELETE_RULE</B> short => What happens to |
|
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|
2807 * the foreign key when primary is deleted. |
|
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|
2808 * <UL> |
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2809 * <LI> importedKeyNoAction - do not allow delete of primary key if it has been imported |
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|
2810 * <LI> importedKeyCascade - delete rows that import a deleted key |
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2811 * <LI> importedKeyRestrict - do not allow delete of primary |
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2812 * key if it has been imported |
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2813 * <LI> importedKeySetNull - change imported key to NULL if |
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|
2814 * its primary key has been deleted |
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2815 * </UL> |
|
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2816 * <LI><B>FK_NAME</B> String => foreign key identifier (may be null) |
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2817 * <LI><B>PK_NAME</B> String => primary key identifier (may be null) |
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2818 * <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key constraints be deferred until commit |
|
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|
2819 * <UL> |
|
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2820 * <LI> importedKeyInitiallyDeferred - see SQL92 for definition |
|
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|
2821 * <LI> importedKeyInitiallyImmediate - see SQL92 for definition |
|
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|
2822 * <LI> importedKeyNotDeferrable - see SQL92 for definition |
|
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|
2823 * </UL> |
|
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|
2824 * </OL> |
|
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|
2825 * |
|
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|
2826 * @param pcatalog primary key catalog name; "" retrieves those without a catalog |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2827 * @param pschema primary key schema name pattern; "" retrieves those without a schema |
|
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|
2828 * @param ptable primary 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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|
2829 * 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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|
2830 * @param fcatalog foreign key catalog name; "" retrieves those without a catalog |
|
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|
2831 * @param fschema foreign key schema name pattern; "" retrieves those without a schema |
|
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|
2832 * @param ftable koreign key table name |
|
371
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|
2833 * 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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|
2834 * @return ResultSet each row is a foreign key column description |
|
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|
2835 * @throws SQLException if a database error occurs |
|
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|
2836 * @see #getImportedKeys |
|
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|
2837 */ |
|
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|
2838 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2839 public ResultSet getCrossReference( |
|
295
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|
2840 final String pcatalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
2841 final String pschema, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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|
2842 final String ptable, |
|
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Add "final" keyword to method arguments and local variables where possible.
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|
2843 final String fcatalog, |
|
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|
2844 final String fschema, |
|
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Add "final" keyword to method arguments and local variables where possible.
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|
2845 final String ftable |
|
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|
2846 ) throws SQLException |
|
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|
2847 { |
|
295
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|
2848 final StringBuilder query = new StringBuilder(keyQuery.length() + 350); |
|
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|
2849 query.append(keyQuery); |
|
a5a898f6886c
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|
2850 |
|
216
116b5a149fb4
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|
2851 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.
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|
2852 || (fcatalog != null && !fcatalog.isEmpty())) { |
|
299
1f0324072b0c
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diff
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|
2853 // non-empty catalog selection. |
|
0
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|
2854 // 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
|
2855 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.
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|
2856 } 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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|
2857 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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diff
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|
2858 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.
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|
2859 } |
|
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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diff
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|
2860 if (ptable != null && !ptable.equals("%")) { |
|
302
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
changeset
|
2861 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.
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|
2862 } |
|
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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|
2863 |
|
323
8701024a9bb0
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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306
diff
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|
2864 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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diff
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|
2865 query.append(" AND fkschema.\"name\" ").append(composeMatchPart(fschema)); |
|
216
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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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|
2866 } |
|
323
8701024a9bb0
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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|
2867 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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diff
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|
2868 query.append(" AND fktable.\"name\" ").append(composeMatchPart(ftable)); |
|
216
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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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|
2869 } |
|
0
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|
2870 } |
|
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|
2871 |
|
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diff
changeset
|
2872 query.append(" ORDER BY \"FKTABLE_SCHEM\", \"FKTABLE_NAME\", \"FK_NAME\", \"KEY_SEQ\""); |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
2873 |
|
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|
2874 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
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|
2875 } |
|
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|
2876 |
|
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changeset
|
2877 /** |
|
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diff
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|
2878 * Get a description of all the SQL data types supported by |
|
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|
2879 * this database. They are ordered by DATA_TYPE and then by how |
|
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|
2880 * closely the data type maps to the corresponding JDBC SQL type. |
|
a5a898f6886c
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|
2881 * |
|
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|
2882 * If the database supports SQL distinct types, then getTypeInfo() will |
|
a5a898f6886c
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|
2883 * return a single row with a TYPE_NAME of DISTINCT and a DATA_TYPE of Types.DISTINCT. |
|
a5a898f6886c
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|
2884 * If the database supports SQL structured types, then getTypeInfo() will |
|
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|
2885 * return a single row with a TYPE_NAME of STRUCT and a DATA_TYPE of Types.STRUCT. |
|
a5a898f6886c
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|
2886 * If SQL distinct or structured types are supported, then information on |
|
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|
2887 * the individual types may be obtained from the getUDTs() method. |
|
a5a898f6886c
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|
2888 * |
|
a5a898f6886c
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|
2889 * <P>Each type description has the following columns: |
|
a5a898f6886c
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|
2890 * <OL> |
|
194
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|
2891 * <LI><B>TYPE_NAME</B> String => Type name |
|
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186
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|
2892 * <LI><B>DATA_TYPE</B> int => SQL data type from java.sql.Types |
|
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186
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|
2893 * <LI><B>PRECISION</B> int => maximum precision |
|
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|
2894 * <LI><B>LITERAL_PREFIX</B> String => prefix used to quote a literal (may be null) |
|
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186
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|
2895 * <LI><B>LITERAL_SUFFIX</B> String => suffix used to quote a literal (may be null) |
|
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Resolved javadoc many errors and warnings, such as:
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|
2896 * <LI><B>CREATE_PARAMS</B> String => parameters used in creating |
|
0
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parents:
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|
2897 * the type (may be null) |
|
194
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|
2898 * <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
changeset
|
2899 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2900 * <LI> typeNoNulls - does not allow NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2901 * <LI> typeNullable - allows NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2902 * <LI> typeNullableUnknown - nullability unknown |
|
a5a898f6886c
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parents:
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|
2903 * </UL> |
|
194
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|
2904 * <LI><B>CASE_SENSITIVE</B> boolean=> is it case sensitive? |
|
1296dbcc4958
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186
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|
2905 * <LI><B>SEARCHABLE</B> short => can you use "WHERE" based on this type: |
|
0
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parents:
diff
changeset
|
2906 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2907 * <LI> typePredNone - No support |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2908 * <LI> typePredChar - Only supported with WHERE .. LIKE |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2909 * <LI> typePredBasic - Supported except for WHERE .. LIKE |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2910 * <LI> typeSearchable - Supported for all WHERE .. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2911 * </UL> |
|
194
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|
2912 * <LI><B>UNSIGNED_ATTRIBUTE</B> boolean => is it unsigned? |
|
1296dbcc4958
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186
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|
2913 * <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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186
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|
2914 * <LI><B>AUTO_INCREMENT</B> boolean => can it be used for an |
|
0
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|
2915 * auto-increment value? |
|
194
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|
2916 * <LI><B>LOCAL_TYPE_NAME</B> String => localized version of type name |
|
0
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|
2917 * (may be null) |
|
194
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|
2918 * <LI><B>MINIMUM_SCALE</B> short => minimum scale supported |
|
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186
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|
2919 * <LI><B>MAXIMUM_SCALE</B> short => maximum scale supported |
|
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186
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|
2920 * <LI><B>SQL_DATA_TYPE</B> int => unused |
|
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parents:
186
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|
2921 * <LI><B>SQL_DATETIME_SUB</B> int => unused |
|
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186
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|
2922 * <LI><B>NUM_PREC_RADIX</B> int => usually 2 or 10 |
|
0
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parents:
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|
2923 * </OL> |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2924 * |
|
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parents:
diff
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|
2925 * @return ResultSet each row is a SQL type description |
|
194
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|
2926 * @throws SQLException if a database error occurs |
|
0
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parents:
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|
2927 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
2928 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
2929 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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|
2930 final StringBuilder query = new StringBuilder(2300); |
|
0
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parents:
diff
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|
2931 query.append("SELECT \"sqlname\" AS \"TYPE_NAME\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2932 "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
|
2933 "\"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
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|
2934 "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
|
2935 " WHEN \"sqlname\" IN ('clob','inet','json','url','uuid','blob','sqlblob') THEN \"sqlname\"||' '''" + |
|
a229ac4e275c
Corrected MonetDatabaseMetaData.getTypeInfo()
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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372
diff
changeset
|
2936 " 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
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|
2937 "cast(CASE WHEN \"systemname\" IN ('str','inet','json','url','uuid','blob','sqlblob') THEN ''''" + |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2938 " ELSE NULL END AS varchar(2)) AS \"LITERAL_SUFFIX\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2939 "CASE WHEN \"sqlname\" IN ('char', 'varchar') THEN 'max length'" + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2940 " WHEN \"sqlname\" = 'decimal' THEN 'precision, scale'" + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2941 " WHEN \"sqlname\" IN ('time', 'timetz', 'timestamp', 'timestamptz', 'sec_interval') THEN 'precision'" + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2942 " ELSE NULL END AS \"CREATE_PARAMS\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2943 "cast(CASE WHEN \"systemname\" = 'oid' THEN ").append(DatabaseMetaData.typeNoNulls) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2944 .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>
parents:
264
diff
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|
2945 "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
|
2946 "cast(CASE WHEN \"systemname\" IN ('str','inet','json','url','uuid') THEN ").append(DatabaseMetaData.typeSearchable) |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2947 .append(" ELSE ").append(DatabaseMetaData.typePredBasic).append(" END AS smallint) AS \"SEARCHABLE\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2948 "CASE WHEN \"sqlname\" IN ('tinyint','smallint','int','bigint','hugeint','decimal','real','double','sec_interval','month_interval') THEN false ELSE true END AS \"UNSIGNED_ATTRIBUTE\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2949 "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>
parents:
372
diff
changeset
|
2950 "CASE WHEN \"sqlname\" IN ('tinyint','smallint','int','bigint') THEN true ELSE false END AS \"AUTO_INCREMENT\", " + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2951 "\"systemname\" AS \"LOCAL_TYPE_NAME\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2952 "cast(0 AS smallint) AS \"MINIMUM_SCALE\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2953 "cast(CASE WHEN \"sqlname\" = 'decimal' THEN (CASE \"systemname\" WHEN 'lng' THEN 18 WHEN 'hge' THEN 38 WHEN 'int' THEN 9 WHEN 'sht' THEN 4 WHEN 'bte' THEN 2 ELSE 0 END)" + |
|
23
e8cced5f7283
Correct the maximum precision of fractions of a second to 6 (was 9) and included it for the missing time and timetz.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
19
diff
changeset
|
2954 " WHEN \"sqlname\" IN ('time', 'timetz', 'timestamp', 'timestamptz', 'sec_interval') THEN 6 ELSE 0 END AS smallint) AS \"MAXIMUM_SCALE\", " + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2955 "cast(0 AS int) AS \"SQL_DATA_TYPE\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2956 "cast(0 AS int) AS \"SQL_DATETIME_SUB\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2957 "cast(\"radix\" as int) AS \"NUM_PREC_RADIX\" " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2958 "FROM \"sys\".\"types\" " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2959 "ORDER BY \"DATA_TYPE\", \"sqlname\", \"id\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
2960 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2961 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2962 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2963 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2964 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
2965 * Retrieves a description of the given table's indices and statistics. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
2966 * They are ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION. |
|
a5a898f6886c
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|
2967 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
2968 * <P>Each index column description has the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
2969 * <OL> |
|
194
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186
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|
2970 * <LI><B>TABLE_CAT</B> String => table catalog (may be null) |
|
1296dbcc4958
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|
2971 * <LI><B>TABLE_SCHEM</B> String => table schema (may be null) |
|
1296dbcc4958
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|
2972 * <LI><B>TABLE_NAME</B> String => table name |
|
1296dbcc4958
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|
2973 * <LI><B>NON_UNIQUE</B> boolean => Can index values be non-unique? |
|
0
a5a898f6886c
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|
2974 * false when TYPE is tableIndexStatistic |
|
194
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|
2975 * <LI><B>INDEX_QUALIFIER</B> String => index catalog (may be null); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
2976 * null when TYPE is tableIndexStatistic |
|
194
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|
2977 * <LI><B>INDEX_NAME</B> String => index name; null when TYPE is |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
2978 * tableIndexStatistic |
|
194
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|
2979 * <LI><B>TYPE</B> short => index type: |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2980 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2981 * <LI> tableIndexStatistic - this identifies table statistics that are |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
2982 * returned in conjuction with a table's index descriptions |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
2983 * <LI> tableIndexClustered - this is a clustered index |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
2984 * <LI> tableIndexHashed - this is a hashed index |
|
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|
2985 * <LI> tableIndexOther - this is some other style of index |
|
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|
2986 * </UL> |
|
194
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|
2987 * <LI><B>ORDINAL_POSITION</B> short => column sequence number |
|
0
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|
2988 * within index; zero when TYPE is tableIndexStatistic |
|
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2989 * <LI><B>COLUMN_NAME</B> String => column name; null when TYPE is |
|
0
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|
2990 * tableIndexStatistic |
|
194
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2991 * <LI><B>ASC_OR_DESC</B> String => column sort sequence, "A" => ascending |
|
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Resolved javadoc many errors and warnings, such as:
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2992 * "D" => descending, may be null if sort sequence is not supported; |
|
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|
2993 * null when TYPE is tableIndexStatistic |
|
194
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2994 * <LI><B>CARDINALITY</B> int => When TYPE is tableIndexStatisic then |
|
0
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changeset
|
2995 * 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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|
2996 * number of unique values in the index. |
|
194
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|
2997 * <LI><B>PAGES</B> int => When TYPE is tableIndexStatisic then |
|
0
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|
2998 * 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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|
2999 * is the number of pages used for the current index. |
|
194
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3000 * <LI><B>FILTER_CONDITION</B> String => Filter condition, if any. |
|
0
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|
3001 * (may be null) |
|
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|
3002 * </OL> |
|
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parents:
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|
3003 * |
|
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|
3004 * @param catalog a catalog name; "" retrieves those without a catalog |
|
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|
3005 * @param schema a schema name pattern; "" retrieves those without a schema |
|
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|
3006 * @param table a table name |
|
371
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Correct SQL syntax in comment (LIKE "%" is not valid SQL in WHERE clause)
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|
3007 * 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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|
3008 * @param unique when true, return only indices for unique values; |
|
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|
3009 * when false, return indices regardless of whether unique or not |
|
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|
3010 * @param approximate when true, result is allowed to reflect approximate |
|
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|
3011 * or out of data values; when false, results are requested to be |
|
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|
3012 * accurate |
|
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|
3013 * @return ResultSet each row is an index column description |
|
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|
3014 * @throws SQLException if a database occurs |
|
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|
3015 */ |
|
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changeset
|
3016 @Override |
|
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|
3017 public ResultSet getIndexInfo( |
|
295
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Add "final" keyword to method arguments and local variables where possible.
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|
3018 final String catalog, |
|
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|
3019 final String schema, |
|
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diff
changeset
|
3020 final String table, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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diff
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|
3021 final boolean unique, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
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|
3022 final boolean approximate |
|
0
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|
3023 ) throws SQLException |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3024 { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3025 String table_row_count = "0"; |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
3026 |
|
302
1b6c514106ce
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300
diff
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|
3027 if (!approximate |
|
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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|
3028 && 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>
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diff
changeset
|
3029 && table != null && !table.isEmpty() && !table.contains("%")) { |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3030 // we need the exact cardinality for one specific fully qualified table |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3031 ResultSet count = null; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3032 try { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3033 count = executeMetaDataQuery("SELECT COUNT(*) FROM \"" + schema + "\".\"" + table + "\""); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3034 if (count != null && count.next()) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3035 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>
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215
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changeset
|
3036 if (count_value != null && !count_value.isEmpty()) |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3037 table_row_count = count_value; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3038 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3039 } catch (SQLException e) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3040 // ignore |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3041 } 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
|
3042 MonetConnection.closeResultsetStatement(count, null); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3043 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3044 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3045 |
|
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
|
3046 final StringBuilder query = new StringBuilder(1250); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3047 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
|
3048 "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
|
3049 "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
|
3050 "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
|
3051 "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
|
3052 "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
|
3053 "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
|
3054 "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
|
3055 "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
|
3056 "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
|
3057 "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
|
3058 "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
|
3059 "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
|
3060 "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
|
3061 "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
|
3062 "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
|
3063 "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
|
3064 "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
|
3065 "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
|
3066 "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.
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parents:
diff
changeset
|
3067 |
|
216
116b5a149fb4
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
215
diff
changeset
|
3068 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
298
diff
changeset
|
3069 // non-empty catalog selection. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3070 // 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
|
3071 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>
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215
diff
changeset
|
3072 } 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
|
3073 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
|
3074 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>
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371
diff
changeset
|
3075 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>
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371
diff
changeset
|
3076 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>
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215
diff
changeset
|
3077 } |
|
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
|
3078 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>
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371
diff
changeset
|
3079 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
|
3080 .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
|
3081 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
|
3082 } |
|
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
|
3083 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
|
3084 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
|
3085 .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
|
3086 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3087 } |
|
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
|
3088 |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3089 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
|
3090 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3091 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3092 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3093 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3094 //== 1.2 methods (JDBC 2) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3095 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3096 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3097 * 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
|
3098 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3099 * @param type - defined in java.sql.ResultSet |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3100 * @return true if so; false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3101 * @throws SQLException - if a database access error occurs |
|
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 @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
|
3104 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
|
3105 // The only type we don't support |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3106 return type != ResultSet.TYPE_SCROLL_SENSITIVE; |
|
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 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3110 * 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
|
3111 * with the given result set type? |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3112 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3113 * @param type - defined in java.sql.ResultSet |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3114 * @param concurrency - type defined in java.sql.ResultSet |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3115 * @return true if so; false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3116 * @throws SQLException - if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3117 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3118 @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
|
3119 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
|
3120 throws SQLException |
|
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 // These combinations are not supported! |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3123 if (type == ResultSet.TYPE_SCROLL_SENSITIVE) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3124 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3125 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3126 // We do only support Read Only ResultSets |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3127 if (concurrency != ResultSet.CONCUR_READ_ONLY) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3128 return false; |
|
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 // 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
|
3131 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3132 } |
|
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 /* lots of unsupported stuff... (no updatable ResultSet!) */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3135 @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
|
3136 public boolean ownUpdatesAreVisible(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3137 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3138 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3139 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3140 @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
|
3141 public boolean ownDeletesAreVisible(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3142 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3143 } |
|
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 @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
|
3146 public boolean ownInsertsAreVisible(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3147 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3148 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3149 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3150 @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
|
3151 public boolean othersUpdatesAreVisible(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3152 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3153 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3154 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3155 @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
|
3156 public boolean othersDeletesAreVisible(final int i) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3157 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3158 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3159 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3160 @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
|
3161 public boolean othersInsertsAreVisible(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3162 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3163 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3164 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3165 @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
|
3166 public boolean updatesAreDetected(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3167 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3168 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3169 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3170 @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
|
3171 public boolean deletesAreDetected(final int i) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3172 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3173 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3174 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3175 @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
|
3176 public boolean insertsAreDetected(final int type) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3177 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3178 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3179 |
|
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 * Indicates whether the driver supports batch updates. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3182 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3183 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3184 public boolean supportsBatchUpdates() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3185 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3186 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3187 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3188 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3189 * Retrieves a description of the user-defined types (UDTs) defined in a particular schema. |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3190 * Schema-specific UDTs may have type JAVA_OBJECT, STRUCT, or DISTINCT. |
|
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|
3191 * Only types matching the catalog, schema, type name and type criteria are returned. |
|
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diff
changeset
|
3192 * They are ordered by DATA_TYPE, TYPE_CAT, TYPE_SCHEM and TYPE_NAME. |
|
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parents:
diff
changeset
|
3193 * The type name parameter may be a fully-qualified name. In this case, the catalog and schemaPattern parameters are ignored. |
|
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parents:
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changeset
|
3194 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3195 * Each type description has the following columns: |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3196 * |
|
194
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3197 * 1 TYPE_CAT String => the type's catalog (may be null) |
|
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|
3198 * 2 TYPE_SCHEM String => type's schema (may be null) |
|
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3199 * 3 TYPE_NAME String => type name |
|
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|
3200 * 4 CLASS_NAME String => Java class name |
|
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|
3201 * 5 DATA_TYPE int => type value defined in java.sql.Types. One of JAVA_OBJECT, STRUCT, or DISTINCT |
|
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|
3202 * 6 REMARKS String => explanatory comment on the type |
|
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|
3203 * 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
|
3204 * user-generated reference type of the SELF_REFERENCING_COLUMN of a structured type as defined |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
3205 * in java.sql.Types (null if DATA_TYPE is not DISTINCT or not STRUCT with REFERENCE_GENERATION = USER_DEFINED) |
|
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3206 * |
|
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3207 * @throws SQLException - if a database access error occurs |
|
0
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|
3208 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3209 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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3210 public ResultSet getUDTs( |
|
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3211 final String catalog, |
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3212 final String schemaPattern, |
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3213 final String typeNamePattern, |
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3214 final int[] types |
|
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|
3215 ) throws SQLException |
|
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3216 { |
|
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3217 final StringBuilder query = new StringBuilder(990); |
|
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|
3218 if (types != null && types.length > 0) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3219 query.append("SELECT * FROM ("); |
|
a5a898f6886c
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|
3220 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3221 query.append("SELECT cast(null as char(1)) AS \"TYPE_CAT\", " + |
|
302
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|
3222 "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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|
3223 "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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diff
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|
3224 "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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|
3225 // next 4 UDTs are standard |
|
0
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changeset
|
3226 " 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
|
3227 " 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>
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|
3228 " WHEN 'url' THEN 'nl.cwi.monetdb.jdbc.types.URL'" + |
|
0
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changeset
|
3229 " WHEN 'uuid' THEN 'java.lang.String'" + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
3230 " ELSE 'java.lang.Object' END AS \"CLASS_NAME\", " + |
|
302
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|
3231 "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.
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|
3232 .append(" ELSE ").append(Types.STRUCT).append(" END AS int) AS \"DATA_TYPE\", " + |
|
302
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diff
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|
3233 "t.\"systemname\" AS \"REMARKS\", " + |
|
0
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|
3234 "cast(null as smallint) AS \"BASE_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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diff
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|
3235 "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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|
3236 "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
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|
3237 // exclude the built-in types (I assume they always have id <= 99 and eclass < 15) |
|
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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300
diff
changeset
|
3238 "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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|
3239 |
|
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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|
3240 if (catalog != null && !catalog.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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|
3241 // non-empty catalog selection. |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3242 // 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
|
3243 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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|
3244 } 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
|
3245 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>
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diff
changeset
|
3246 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
|
3247 } |
|
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
|
3248 if (typeNamePattern != null && !typeNamePattern.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
|
3249 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.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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215
diff
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|
3250 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3251 } |
|
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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|
3252 |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3253 if (types != null && types.length > 0) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3254 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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diff
changeset
|
3255 for (int i = 0; i < types.length; i++) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3256 if (i > 0) { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3257 query.append(", "); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3258 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3259 query.append(types[i]); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3260 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3261 query.append(")"); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
3262 } |
|
216
116b5a149fb4
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|
3263 |
|
0
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diff
changeset
|
3264 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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|
3265 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
3266 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
3267 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3268 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3269 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3270 * Retrieves the connection that produced this metadata object. |
|
a5a898f6886c
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|
3271 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
3272 * @return the connection that produced this metadata object |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
3273 */ |
|
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|
3274 @Override |
|
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changeset
|
3275 public Connection getConnection() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3276 return con; |
|
a5a898f6886c
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changeset
|
3277 } |
|
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changeset
|
3278 |
|
a5a898f6886c
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changeset
|
3279 /* I don't find these in the spec!?! */ |
|
295
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|
3280 public boolean rowChangesAreDetected(final int type) { |
|
0
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|
3281 return false; |
|
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changeset
|
3282 } |
|
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|
3283 |
|
295
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changeset
|
3284 public boolean rowChangesAreVisible(final int type) { |
|
0
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changeset
|
3285 return false; |
|
a5a898f6886c
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changeset
|
3286 } |
|
a5a898f6886c
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diff
changeset
|
3287 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3288 //== 1.4 methods (JDBC 3) |
|
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.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3291 * Retrieves whether this database supports savepoints. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3292 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3293 * @return <code>true</code> if savepoints are supported; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3294 * <code>false</code> otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3295 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3296 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3297 public boolean supportsSavepoints() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3298 return true; |
|
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 |
|
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 * Retrieves whether this database supports named parameters to callable |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
3303 * statements. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
3304 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3305 * @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
|
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 supportsNamedParameters() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3310 return false; |
|
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 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3314 * 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
|
3315 * returned from a <code>CallableStatement</code> object |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3316 * simultaneously. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3317 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3318 * @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
|
3319 * can return multiple <code>ResultSet</code> objects |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3320 * simultaneously; <code>false</code> otherwise |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3321 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3322 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3323 public boolean supportsMultipleOpenResults() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3324 return true; |
|
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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 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3327 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3328 * 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
|
3329 * a statement has been executed. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3330 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3331 * @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
|
3332 * after a statement has executed; <code>false</code> otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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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 supportsGetGeneratedKeys() { |
|
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 a description of the user-defined type (UDT) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3341 * 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
|
3342 * 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
|
3343 * <P> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3344 * Only supertype information for UDTs matching the catalog, |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3345 * 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
|
3346 * 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
|
3347 * 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
|
3348 * ignored. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3349 * <P> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3350 * 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
|
3351 * 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
|
3352 * 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
|
3353 * columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3354 * <OL> |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3355 * <LI><B>TYPE_CAT</B> String => the UDT's catalog (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
|
3356 * <LI><B>TYPE_SCHEM</B> String => UDT's 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
|
3357 * <LI><B>TYPE_NAME</B> String => type name of the UDT |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3358 * <LI><B>SUPERTYPE_CAT</B> String => the direct super type's catalog |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
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|
3359 * (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
|
3360 * <LI><B>SUPERTYPE_SCHEM</B> String => the direct super type's schema |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3361 * (may be <code>null</code>) |
|
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
|
3362 * <LI><B>SUPERTYPE_NAME</B> String => the direct super type's name |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3363 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3364 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3365 * <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
|
3366 * empty result set is returned. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3367 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3368 * @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
|
3369 * <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
|
3370 * @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
|
3371 * @param typeNamePattern a UDT name pattern; may be a fully-qualified name |
|
0
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parents:
diff
changeset
|
3372 * @return a <code>ResultSet</code> object in which a row gives information |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
3373 * about the designated UDT |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3374 * @throws SQLException if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
3375 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
3376 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3377 public ResultSet getSuperTypes( |
|
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
|
3378 final String catalog, |
|
003ae6d881db
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294
diff
changeset
|
3379 final String schemaPattern, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
changeset
|
3380 final String typeNamePattern |
|
0
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diff
changeset
|
3381 ) throws SQLException |
|
a5a898f6886c
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changeset
|
3382 { |
|
295
003ae6d881db
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diff
changeset
|
3383 final String query = |
|
0
a5a898f6886c
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parents:
diff
changeset
|
3384 "SELECT cast(null as char(1)) AS \"TYPE_CAT\", '' AS \"TYPE_SCHEM\", '' AS \"TYPE_NAME\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3385 "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.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
350
diff
changeset
|
3386 "WHERE 1=0"; |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3387 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3388 return executeMetaDataQuery(query); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3389 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3390 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3391 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3392 * Retrieves a description of the table hierarchies defined in a particular |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3393 * schema in this database. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3394 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3395 * <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
|
3396 * 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
|
3397 * qualified name, in which case, the catalog and schemaPattern parameters |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3398 * are ignored. If a table does not have a super table, it is not listed here. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3399 * 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
|
3400 * sub tables. Therefore, the type description does not need to include |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3401 * this information for the supertable. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3402 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3403 * <P>Each type description has the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
3404 * <OL> |
|
194
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|
3405 * <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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186
diff
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|
3406 * <LI><B>TABLE_SCHEM</B> String => type's schema (may be <code>null</code>) |
|
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186
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|
3407 * <LI><B>TABLE_NAME</B> String => type name |
|
1296dbcc4958
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|
3408 * <LI><B>SUPERTABLE_NAME</B> String => the direct super type's name |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3409 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3410 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3411 * <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
|
3412 * empty result set is returned. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3413 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3414 * @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
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|
3415 * <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
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|
3416 * @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
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|
3417 * @param tableNamePattern a table name pattern; may be a fully-qualified name |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3418 * @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
|
3419 * @throws SQLException if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3420 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3421 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
3422 public ResultSet getSuperTables( |
|
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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|
3423 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
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|
3424 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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|
3425 final String tableNamePattern |
|
0
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parents:
diff
changeset
|
3426 ) throws SQLException |
|
a5a898f6886c
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|
3427 { |
|
295
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diff
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|
3428 final String query = |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3429 "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
|
3430 "'' 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>
parents:
350
diff
changeset
|
3431 "WHERE 1=0"; |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3432 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3433 return executeMetaDataQuery(query); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3434 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3435 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3436 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3437 * 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
|
3438 * 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
|
3439 * and catalog. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3440 * <P> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3441 * 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
|
3442 * 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
|
3443 * 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
|
3444 * does not contain inherited attributes. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3445 * <P> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3446 * 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
|
3447 * columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3448 * <OL> |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3449 * <LI><B>TYPE_CAT</B> String => type catalog (may be <code>null</code>) |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3450 * <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>
parents:
186
diff
changeset
|
3451 * <LI><B>TYPE_NAME</B> String => type name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3452 * <LI><B>ATTR_NAME</B> String => attribute name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3453 * <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
|
3454 * <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
|
3455 * 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
|
3456 * fully qualified and represents the target type of the reference type. |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3457 * <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
|
3458 * 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
|
3459 * decimal types this is precision. |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3460 * <LI><B>DECIMAL_DIGITS</B> int => the number of fractional digits |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3461 * <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>
parents:
186
diff
changeset
|
3462 * <LI><B>NULLABLE</B> int => whether NULL is allowed |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3463 * <UL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3464 * <LI> attributeNoNulls - might not allow NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3465 * <LI> attributeNullable - definitely allows NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3466 * <LI> attributeNullableUnknown - nullability unknown |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3467 * </UL> |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3468 * <LI><B>REMARKS</B> String => comment describing column (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
|
3469 * <LI><B>ATTR_DEF</B> String => default value (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
|
3470 * <LI><B>SQL_DATA_TYPE</B> int => unused |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3471 * <LI><B>SQL_DATETIME_SUB</B> int => unused |
|
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3472 * <LI><B>CHAR_OCTET_LENGTH</B> int => for char types the |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3473 * maximum number of bytes in the column |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
changeset
|
3474 * <LI><B>ORDINAL_POSITION</B> int => index of column in table |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3475 * (starting at 1) |
|
194
1296dbcc4958
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186
diff
changeset
|
3476 * <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
|
3477 * 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
changeset
|
3478 * allow NULL values. An empty string means unknown. |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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186
diff
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|
3479 * <LI><B>SCOPE_CATALOG</B> String => catalog of table that is the |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3480 * scope of a reference attribute (<code>null</code> if DATA_TYPE isn't REF) |
|
194
1296dbcc4958
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186
diff
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|
3481 * <LI><B>SCOPE_SCHEMA</B> String => schema of table that is the |
|
0
a5a898f6886c
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parents:
diff
changeset
|
3482 * scope of a reference attribute (<code>null</code> if DATA_TYPE isn't REF) |
|
194
1296dbcc4958
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff
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|
3483 * <LI><B>SCOPE_TABLE</B> String => table name that is the scope of a |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3484 * reference attribute (<code>null</code> if the DATA_TYPE isn't REF) |
|
194
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186
diff
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|
3485 * <LI><B>SOURCE_DATA_TYPE</B> short => source type of a distinct type or user-generated |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3486 * Ref type,SQL type from java.sql.Types (<code>null</code> if DATA_TYPE |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3487 * isn't DISTINCT or user-generated REF) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3488 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3489 * @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
|
3490 * is stored in the database; "" retrieves those without a catalog; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3491 * <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
|
3492 * the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3493 * @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
|
3494 * as it is stored in the database; "" retrieves those without a schema; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3495 * <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
|
3496 * the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3497 * @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
|
3498 * type name as it is stored in the database |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3499 * @param attributeNamePattern an attribute name pattern; must match the attribute |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3500 * name as it is declared in the database |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3501 * @return a <code>ResultSet</code> object in which each row is an |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3502 * attribute description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3503 * @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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|
3504 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3505 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3506 public ResultSet getAttributes( |
|
295
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
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|
3507 final String catalog, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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294
diff
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|
3508 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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|
3509 final String typeNamePattern, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
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diff
changeset
|
3510 final String attributeNamePattern |
|
0
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parents:
diff
changeset
|
3511 ) throws SQLException |
|
a5a898f6886c
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|
3512 { |
|
295
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Add "final" keyword to method arguments and local variables where possible.
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|
3513 final String query = |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3514 "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
|
3515 "'' 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
|
3516 "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
|
3517 "'' 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
|
3518 "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
|
3519 "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
|
3520 "'' 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
|
3521 "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
|
3522 "WHERE 1=0"; |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3523 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3524 return executeMetaDataQuery(query); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3525 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3526 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3527 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3528 * 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
|
3529 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3530 * @param holdability one of the following constants: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3531 * <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3532 * <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3533 * @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
|
3534 * @see Connection |
|
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 @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
|
3537 public boolean supportsResultSetHoldability(final int holdability) { |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3538 // 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
|
3539 // 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
|
3540 return holdability == ResultSet.HOLD_CURSORS_OVER_COMMIT; |
|
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 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3543 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3544 * 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
|
3545 * object. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3546 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3547 * @return the default holdability; either |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3548 * <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3549 * <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3550 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3551 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3552 public int getResultSetHoldability() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3553 return ResultSet.HOLD_CURSORS_OVER_COMMIT; |
|
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 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3557 * Retrieves the major version number of the underlying database. |
|
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 underlying database's major version |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3560 * @throws SQLException if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3561 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3562 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3563 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>
parents:
331
diff
changeset
|
3564 return con.getDatabaseMajorVersion(); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3565 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3566 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3567 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3568 * Retrieves the minor version number of the underlying database. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3569 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3570 * @return underlying database's minor version |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3571 * @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
|
3572 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3573 @Override |
|
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parents:
diff
changeset
|
3574 public int getDatabaseMinorVersion() 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
|
3575 return con.getDatabaseMinorVersion(); |
|
0
a5a898f6886c
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parents:
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changeset
|
3576 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3577 |
|
a5a898f6886c
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parents:
diff
changeset
|
3578 /** |
|
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diff
changeset
|
3579 * Retrieves the major JDBC version number for this driver. |
|
a5a898f6886c
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changeset
|
3580 * |
|
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changeset
|
3581 * @return JDBC version major number |
|
a5a898f6886c
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changeset
|
3582 */ |
|
a5a898f6886c
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changeset
|
3583 @Override |
|
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diff
changeset
|
3584 public int getJDBCMajorVersion() { |
|
a5a898f6886c
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diff
changeset
|
3585 return 4; // This class implements JDBC 4.1 (at least we try to) |
|
a5a898f6886c
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changeset
|
3586 } |
|
a5a898f6886c
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changeset
|
3587 |
|
a5a898f6886c
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diff
changeset
|
3588 /** |
|
a5a898f6886c
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diff
changeset
|
3589 * Retrieves the minor JDBC version number for this driver. |
|
a5a898f6886c
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changeset
|
3590 * |
|
a5a898f6886c
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diff
changeset
|
3591 * @return JDBC version minor number |
|
a5a898f6886c
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changeset
|
3592 */ |
|
a5a898f6886c
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parents:
diff
changeset
|
3593 @Override |
|
a5a898f6886c
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parents:
diff
changeset
|
3594 public int getJDBCMinorVersion() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3595 return 1; // This class implements JDBC 4.1 (at least we try to) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3596 } |
|
a5a898f6886c
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diff
changeset
|
3597 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
3598 /** |
|
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changeset
|
3599 * Indicates whether the SQLSTATEs returned by <code>SQLException.getSQLState</code> |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
3600 * is X/Open (now known as Open Group) SQL CLI or SQL:2003. |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3601 * @return the type of SQLSTATEs, one of: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3602 * sqlStateXOpen or |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3603 * sqlStateSQL |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
3604 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3605 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3606 public int getSQLStateType() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
3607 // At least this driver conforms with SQLSTATE to the SQL:2003 standard |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3608 return DatabaseMetaData.sqlStateSQL; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
3609 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3610 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3611 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3612 * 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>
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diff
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|
3613 * to the LOB. |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3614 * @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>
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|
3615 * <code>false</code> if updates are made directly to the LOB |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
3616 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3617 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
3618 public boolean locatorsUpdateCopy() { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
3619 // not that we have it, but in a transaction it will be copy-on-write |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
3620 return true; |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
3621 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3622 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3623 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3624 * Retrieves whether this database supports statement pooling. |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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|
3625 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
3626 * @return <code>true</code> is so; |
|
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|
3627 <code>false</code> otherwise |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3628 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3629 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3630 public boolean supportsStatementPooling() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
3631 // For the moment, I don't think so |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3632 return false; |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
3633 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3634 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3635 //== 1.6 methods (JDBC 4) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
3636 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3637 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3638 * Indicates whether or not this data source supports the SQL ROWID |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3639 * type, and if so the lifetime for which a RowId object remains |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3640 * valid. |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3641 * |
|
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|
3642 * @return ROWID_UNSUPPORTED for now |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
3643 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3644 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
3645 public RowIdLifetime getRowIdLifetime() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3646 // I believe we don't do rowids |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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changeset
|
3647 return RowIdLifetime.ROWID_UNSUPPORTED; |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
3648 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3649 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3650 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3651 * 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
|
3652 * are ordered by schema name. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3653 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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|
3654 * <P>The schema column is: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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|
3655 * <OL> |
|
194
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diff
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|
3656 * <LI><B>TABLE_SCHEM</B> String => schema name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
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|
3657 * <LI><B>TABLE_CATALOG</B> String => catalog name (may be null) |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
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|
3658 * </OL> |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3659 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3660 * @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
|
3661 * schema name |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3662 * @throws SQLException if a database error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3663 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3664 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3665 public ResultSet getSchemas() throws SQLException { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3666 return getSchemas(null, null); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3667 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3668 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3669 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3670 * 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
|
3671 * vendor functions using the stored procedure escape syntax. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3672 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3673 * @return true if so; false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
3674 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3675 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3676 public boolean supportsStoredFunctionsUsingCallSyntax() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3677 return false; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3678 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3679 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
3680 /** |
|
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diff
changeset
|
3681 * Retrieves whether a SQLException while autoCommit is true |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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diff
changeset
|
3682 * inidcates that all open ResultSets are closed, even ones that are |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3683 * holdable. When a SQLException occurs while autocommit is true, it |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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changeset
|
3684 * is vendor specific whether the JDBC driver responds with a commit |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3685 * operation, a rollback operation, or by doing neither a commit nor |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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|
3686 * a rollback. A potential result of this difference is in whether |
|
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3687 * or not holdable ResultSets are closed. |
|
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|
3688 * |
|
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changeset
|
3689 * @return true if so; false otherwise |
|
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changeset
|
3690 */ |
|
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changeset
|
3691 @Override |
|
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diff
changeset
|
3692 public boolean autoCommitFailureClosesAllResultSets() { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3693 // The driver caches most of it, and as far as I knoww the |
|
a5a898f6886c
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changeset
|
3694 // server doesn't close outstanding result handles on commit |
|
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changeset
|
3695 // failure either. |
|
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changeset
|
3696 return false; |
|
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diff
changeset
|
3697 } |
|
a5a898f6886c
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changeset
|
3698 |
|
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changeset
|
3699 /** |
|
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diff
changeset
|
3700 * Retrieves a list of the client info properties that the driver |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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changeset
|
3701 * supports. The result set contains the following columns |
|
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changeset
|
3702 * |
|
194
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186
diff
changeset
|
3703 * 1. NAME String => The name of the client info property |
|
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changeset
|
3704 * 2. MAX_LEN int => The maximum length of the value for the |
|
0
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changeset
|
3705 * property |
|
194
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186
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|
3706 * 3. DEFAULT_VALUE String => The default value of the |
|
0
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changeset
|
3707 * property |
|
194
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3708 * 4. DESCRIPTION String => A description of the |
|
0
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parents:
diff
changeset
|
3709 * property. This will typically contain information as |
|
a5a898f6886c
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parents:
diff
changeset
|
3710 * to where this property is stored in the database. |
|
a5a898f6886c
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parents:
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|
3711 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
3712 * The ResultSet is sorted by the NAME column |
|
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parents:
diff
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|
3713 * |
|
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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|
3714 * @return A ResultSet object; each row is a supported client info property |
|
0
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parents:
diff
changeset
|
3715 * @throws SQLException if a database access error occurs |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
3716 */ |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3717 @Override |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3718 public ResultSet getClientInfoProperties() throws SQLException { |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
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|
3719 // 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>
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294
diff
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|
3720 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
|
3721 "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
|
3722 "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
|
3723 "SELECT 'user', 1024, '', 'user name to login to MonetDB server' UNION ALL " + |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3724 "SELECT 'password', 128, '', 'password for user name to login to MonetDB server' UNION ALL " + |
|
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
3725 "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
|
3726 "SELECT 'database', 1024, 'demo', 'name of database. It matches the dbfarm subdirectory name' UNION ALL " + |
|
0
a5a898f6886c
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diff
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|
3727 "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
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|
3728 "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
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|
3729 "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
|
3730 "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
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|
3731 "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
|
3732 "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
|
3733 "ORDER BY \"NAME\""; |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3734 |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3735 return executeMetaDataQuery(query); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
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changeset
|
3736 } |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3737 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3738 /** |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3739 * 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
|
3740 * available in the given catalog. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3741 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3742 * 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
|
3743 * 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
|
3744 * 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
|
3745 * |
|
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Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3746 * Each function description has the the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
3747 * |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
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|
3748 * 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
|
3749 * 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
|
3750 * 3. FUNCTION_NAME String => function name. This is the |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
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|
3751 * 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
|
3752 * 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>
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186
diff
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|
3753 * 5. FUNCTION_TYPE short => kind of function: |
|
0
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3754 * * functionResultUnknown - Cannot determine if a return |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3755 * value or table will be returned |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3756 * * functionNoTable- Does not return a table |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
3757 * * 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
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|
3758 * 6. SPECIFIC_NAME String => the name which uniquely identifies |
|
0
a5a898f6886c
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Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3759 * 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
|
3760 * 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
|
3761 * FUNCTION_NAME for example with overload functions |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3762 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3763 * 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
|
3764 * that are returned by getFunctions. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3765 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3766 * @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
|
3767 * 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
|
3768 * 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
|
3769 * used to narrow the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3770 * @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
|
3771 * 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
|
3772 * 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
|
3773 * not be used to narrow the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3774 * @param functionNamePattern a function name pattern; must match |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3775 * 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
|
3776 * 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
|
3777 * @return ResultSet - each row is a function description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
3778 * @throws SQLException if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
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|
3779 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3780 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3781 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
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|
3782 final String catalog, |
|
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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|
3783 final String schemaPattern, |
|
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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|
3784 final String functionNamePattern |
|
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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|
3785 ) throws SQLException |
|
0
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parents:
diff
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|
3786 { |
|
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
|
3787 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
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|
3788 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
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|
3789 query.append("SELECT cast(null as char(1)) AS \"FUNCTION_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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|
3790 "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>
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300
diff
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|
3791 "f.\"name\" AS \"FUNCTION_NAME\", ") |
|
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3792 .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
|
3793 "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
|
3794 .append(" WHEN f.\"type\" IN (5,7) THEN ").append(DatabaseMetaData.functionReturnsTable) |
|
0
a5a898f6886c
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parents:
diff
changeset
|
3795 .append(" ELSE ").append(DatabaseMetaData.functionResultUnknown).append(" END AS \"FUNCTION_TYPE\", " + |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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diff
changeset
|
3796 // 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
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
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|
3797 "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
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|
3798 "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
|
3799 "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
|
3800 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>
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300
diff
changeset
|
3801 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>
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213
diff
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|
3802 } |
|
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
changeset
|
3803 // only functions, so exclude procedures (type = 2). Those will to be returned via getProcedures() |
|
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
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|
3804 query.append("WHERE f.\"type\" <> 2"); |
|
0
a5a898f6886c
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parents:
diff
changeset
|
3805 |
|
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
|
3806 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
298
diff
changeset
|
3807 // non-empty catalog selection. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3808 // 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
|
3809 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
|
3810 } 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
|
3811 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
|
3812 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
|
3813 } |
|
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
|
3814 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
|
3815 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
|
3816 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3817 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3818 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3819 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
|
3820 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3821 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3822 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3823 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3824 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3825 * 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
|
3826 * function parameters and return type. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3827 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3828 * 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
|
3829 * 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
|
3830 * 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
|
3831 * The column descriptions follow in column number order. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3832 * |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3833 * 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
|
3834 * 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
|
3835 * 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
|
3836 * 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
|
3837 * 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
|
3838 * functionColumnUnknown - nobody knows |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3839 * functionColumnIn - IN parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3840 * functionColumnInOut - INOUT parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3841 * functionColumnOut - OUT parameter |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3842 * functionColumnReturn - function return value |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3843 * 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
|
3844 * 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
|
3845 * 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
|
3846 * 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
|
3847 * 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
|
3848 * 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
|
3849 * 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
|
3850 * 12. NULLABLE short => can it contain NULL. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3851 * functionNoNulls - does not allow NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3852 * functionNullable - allows NULL values |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3853 * 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
|
3854 * 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
|
3855 * 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
|
3856 * 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
|
3857 * 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
|
3858 * 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
|
3859 * 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
|
3860 * 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
|
3861 * 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
|
3862 * 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
|
3863 * 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
|
3864 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3865 * @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
|
3866 * 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
|
3867 * 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
|
3868 * used to narrow the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3869 * @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
|
3870 * 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
|
3871 * 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
|
3872 * not be used to narrow the search |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3873 * @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
|
3874 * 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
|
3875 * 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
|
3876 * @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
|
3877 * 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
|
3878 * 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
|
3879 * @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
|
3880 * column or return type |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3881 * @throws SQLException - if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3882 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3883 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3884 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
|
3885 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
|
3886 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
changeset
|
3887 final String functionNamePattern, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3888 final String columnNamePattern |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3889 ) throws SQLException |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3890 { |
|
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
|
3891 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
|
3892 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
|
3893 "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
|
3894 "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
|
3895 "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
|
3896 "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
|
3897 " 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
|
3898 .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
|
3899 " WHEN 1 THEN ").append(DatabaseMetaData.functionColumnIn) |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3900 .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.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3901 "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
|
3902 "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
|
3903 "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
|
3904 " 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
|
3905 "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
|
3906 " 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
|
3907 "cast(CASE WHEN a.\"type\" IN ('tinyint','smallint','int','bigint','hugeint','oid','wrd','decimal','numeric'," + |
|
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 "'time','timetz','timestamp','timestamptz','sec_interval') THEN a.\"type_scale\" ELSE NULL END AS smallint) AS \"SCALE\", " + |
|
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 "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
|
3910 " 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
|
3911 "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
|
3912 "cast(null as char(1)) AS \"REMARKS\", " + |
|
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
|
3913 "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
|
3914 "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
|
3915 "cast('' as varchar(3)) AS \"IS_NULLABLE\", " + |
|
0
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Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3916 // 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>
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diff
changeset
|
3917 "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
|
3918 "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
|
3919 "JOIN \"sys\".\"functions\" f ON a.\"func_id\" = f.\"id\" " + |
|
1b6c514106ce
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
300
diff
changeset
|
3920 "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
|
3921 // only functions, so exclude procedures (type = 2). Those will to be returned via getProcedureColumns() |
|
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
|
3922 "WHERE f.\"type\" <> 2"); |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3923 |
|
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
|
3924 if (catalog != null && !catalog.isEmpty()) { |
|
299
1f0324072b0c
Correcting typo in comment
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
298
diff
changeset
|
3925 // non-empty catalog selection. |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
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parents:
diff
changeset
|
3926 // 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
|
3927 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
|
3928 } 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
|
3929 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
|
3930 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
|
3931 } |
|
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
|
3932 if (functionNamePattern != null && !functionNamePattern.equals("%")) { |
|
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
|
3933 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
|
3934 } |
|
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
|
3935 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
|
3936 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
|
3937 } |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3938 } |
|
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
|
3939 |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3940 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
|
3941 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3942 return executeMetaDataQuery(query.toString()); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3943 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3944 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3945 //== 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
|
3946 |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3947 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3948 * 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
|
3949 * 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
|
3950 * 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
|
3951 * 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
|
3952 * 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
|
3953 * necessarily be able to be modified. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3954 * 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
|
3955 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3956 * 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
|
3957 * 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
|
3958 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3959 * Each column description has the following columns: |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3960 * |
|
194
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3961 * 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
|
3962 * 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
|
3963 * 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
|
3964 * 4. COLUMN_NAME String => column name |
|
1296dbcc4958
Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3965 * 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
|
3966 * 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
|
3967 * 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
|
3968 * 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
|
3969 * 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
|
3970 * 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
|
3971 * 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:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
186
diff
changeset
|
3972 * 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
|
3973 * YES --- if the column can include NULLs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3974 * NO --- if the column cannot include NULLs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3975 * 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
|
3976 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3977 * @param catalog a catalog name |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3978 * @param schemaPattern a schema name pattern |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3979 * @param tableNamePattern a table name pattern |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3980 * @param columnNamePattern a column name pattern |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3981 * @return ResultSet where each row is a column description |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3982 * @throws SQLException if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3983 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3984 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3985 public ResultSet getPseudoColumns( |
|
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
|
3986 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
|
3987 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
changeset
|
3988 final String tableNamePattern, |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3989 final String columnNamePattern |
|
003ae6d881db
Add "final" keyword to method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
294
diff
changeset
|
3990 ) throws SQLException |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3991 { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
3992 // MonetDB currently does not support pseudo or hidden columns, so return an empty ResultSet |
|
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
|
3993 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
|
3994 "SELECT cast(null as char(1)) AS \"TABLE_CAT\", " + |
|
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
|
3995 "'' AS \"TABLE_SCHEM\", " + |
|
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
|
3996 "'' AS \"TABLE_NAME\", " + |
|
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
|
3997 "'' AS \"COLUMN_NAME\", " + |
|
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
|
3998 "cast(0 as int) AS \"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
|
3999 "cast(0 as int) AS \"COLUMN_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
|
4000 "cast(0 as int) AS \"DECIMAL_DIGITS\", " + |
|
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
|
4001 "cast(0 as int) AS \"NUM_PREC_RADIX\", " + |
|
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
|
4002 "'' AS \"COLUMN_USAGE\", " + |
|
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
|
4003 "'' AS \"REMARKS\", " + |
|
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
|
4004 "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
|
4005 "'' AS \"IS_NULLABLE\" " + |
|
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
|
4006 "WHERE 1=0"; |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4007 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4008 return executeMetaDataQuery(query); |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4009 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4010 |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4011 /** |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4012 * Retrieves whether a generated key will always be returned if the |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4013 * column name(s) or index(es) specified for the auto generated key |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4014 * column(s) are valid and the statement succeeds. The key that is |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4015 * returned may or may not be based on the column(s) for the auto |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4016 * generated key. |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4017 * |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4018 * @return true if so, false otherwise |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4019 * @throws SQLException - if a database access error occurs |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4020 */ |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4021 @Override |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4022 public boolean generatedKeyAlwaysReturned() throws SQLException { |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4023 return true; |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4024 } |
|
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4025 |
|
264
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4026 //== 1.8 methods (JDBC 4.2) |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4027 |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4028 /** |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4029 * Retrieves the maximum number of bytes this database allows for the logical size for a LOB. |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4030 * The default implementation will return 0 |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4031 * @return the maximum number of bytes |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4032 */ |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4033 @Override |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4034 public long getMaxLogicalLobSize() { |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4035 return 0; |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4036 } |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4037 |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4038 /** |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4039 * Retrieves whether this database supports REF CURSOR. |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4040 * The default implementation will return false |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4041 * @return true if so, false otherwise |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4042 */ |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4043 @Override |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4044 public boolean supportsRefCursors() { |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4045 return false; |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4046 } |
|
d31b99f06b26
Implemented two new 1.8 methods (JDBC 4.2)
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
263
diff
changeset
|
4047 |
|
0
a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff
changeset
|
4048 //== 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>
parents:
302
diff
changeset
|
4049 |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4050 |
|
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
|
4051 //== internal helper methods which do not belong to the JDBC interface |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4052 |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4053 /** |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4054 * 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>
parents:
331
diff
changeset
|
4055 * 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>
parents:
331
diff
changeset
|
4056 * 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>
parents:
331
diff
changeset
|
4057 */ |
|
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
|
4058 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>
parents:
331
diff
changeset
|
4059 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>
parents:
331
diff
changeset
|
4060 ResultSet rs = null; |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4061 if (stmt != null) { |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4062 // for debug: System.out.println("SQL (len " + query.length() + "): " + query); |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4063 rs = stmt.executeQuery(query); |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4064 if (rs != null) { |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4065 /* we want the statement object to be closed also when the resultset 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>
parents:
331
diff
changeset
|
4066 stmt.closeOnCompletion(); |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4067 } else { |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4068 /* failed to produce a resultset, so release resources for created statement object now */ |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4069 stmt.close(); |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4070 } |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4071 } |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4072 return rs; |
|
e8962bdaa206
Moved utility methods and associated caches from DatabaseMetaData to Connection object.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
331
diff
changeset
|
4073 } |
|
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
|
4074 |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4075 /** |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4076 * Returns a SQL match part string where depending on the input value we |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4077 * compose an exact match (use =) or match with wildcards (use LIKE) or IS NULL |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4078 * |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4079 * @param in the string to match |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4080 * @return the SQL match part string |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4081 */ |
|
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
|
4082 private final String composeMatchPart(final String in) { |
|
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
|
4083 if (in == null) |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4084 return "IS NULL"; |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4085 |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4086 String cmp = "= '"; |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4087 // check if SQL wildcards are used in the input, if so use LIKE |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4088 if (in.contains("%") || in.contains("_")) |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4089 cmp = "LIKE '"; |
|
a91168efdf27
Small code and doc improvements. Moved helper functions to the bottom.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents:
302
diff
changeset
|
4090 |
|
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
|
4091 return cmp + con.escapeSpecialChars(in) + "'"; |
|
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4092 } |
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4093 |
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4094 /** |
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4095 * Returns the given string between two double quotes for usage as |
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4096 * exact column or table name in SQL queries. |
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4097 * |
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4098 * @param in the string to quote |
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4099 * @return the quoted string |
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4100 */ |
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4101 // @SuppressWarnings("unused") |
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4102 // private static final String dq(String in) { |
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4103 // return "\"" + in.replaceAll("\\\\", "\\\\\\\\").replaceAll("\"", "\\\\\"") + "\""; |
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4104 // } |
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4105 |
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4106 //== end helper methods |
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4107 } |