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annotate ChangeLog @ 652:6a34d2c36dec

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Improved and optimized DatabaseMetaData.getBestRowIdentifier().
author Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
date Wed, 24 Aug 2022 22:02:32 +0200 (2022-08-24)
parents 03e0f577db00
children 0b564ae68ac1
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a6608e9581c1 Moved content of ChangeLog to ChangeLog-Archive.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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1 # ChangeLog file for monetdb-java
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a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
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2 # This file is updated with Maddlog
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6a34d2c36dec Improved and optimized DatabaseMetaData.getBestRowIdentifier().
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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4 * Wed Aug 24 2022 Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
6a34d2c36dec Improved and optimized DatabaseMetaData.getBestRowIdentifier().
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 648
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5 - Improved DatabaseMetaData.getBestRowIdentifier(). When there are multiple
6a34d2c36dec Improved and optimized DatabaseMetaData.getBestRowIdentifier().
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 648
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6 unique constraints and no pkey for a table it used to return the columns
6a34d2c36dec Improved and optimized DatabaseMetaData.getBestRowIdentifier().
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parents: 648
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7 of all the table unique constraints. Now it only returns the columns of
6a34d2c36dec Improved and optimized DatabaseMetaData.getBestRowIdentifier().
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 648
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8 the first table unique constraint.
6a34d2c36dec Improved and optimized DatabaseMetaData.getBestRowIdentifier().
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9 Also optimized the performance of getBestRowIdentifier(). It used to
6a34d2c36dec Improved and optimized DatabaseMetaData.getBestRowIdentifier().
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parents: 648
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10 send a separate query first to find out if the table had a pkey or not.
6a34d2c36dec Improved and optimized DatabaseMetaData.getBestRowIdentifier().
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11 This extra query is now integrated so less queries are send to the server.
6a34d2c36dec Improved and optimized DatabaseMetaData.getBestRowIdentifier().
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fbed03097738 Corrected DatabaseMetaData methods getPrimaryKeys(), getBestRowIdentifier() and getIndexInfo() for temporary tables in schema tmp.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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13 * Wed Mar 30 2022 Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
fbed03097738 Corrected DatabaseMetaData methods getPrimaryKeys(), getBestRowIdentifier() and getIndexInfo() for temporary tables in schema tmp.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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14 - Corrected DatabaseMetaData methods getPrimaryKeys(), getBestRowIdentifier()
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03e0f577db00 Improve ChangeLog text.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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15 and getIndexInfo() for local temporary tables located in schema tmp. They
03e0f577db00 Improve ChangeLog text.
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16 did not return any rows when the temp table had a primary or unique key or
03e0f577db00 Improve ChangeLog text.
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17 index. Now they do return rows as expected.
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fbed03097738 Corrected DatabaseMetaData methods getPrimaryKeys(), getBestRowIdentifier() and getIndexInfo() for temporary tables in schema tmp.
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dd9b4fb14256 Added recognition of 'xml' type.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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19 * Thu Feb 10 2022 Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
dd9b4fb14256 Added recognition of 'xml' type.
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20 - Added recognition of 'xml' type. Use default mapping to Types.VARCHAR for
dd9b4fb14256 Added recognition of 'xml' type.
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21 easy and fast (as java.lang.String) retrieval, display and setting data of
dd9b4fb14256 Added recognition of 'xml' type.
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22 columns of type 'xml'.
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24 * Thu Jan 27 2022 Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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25 - Compiled and released new jar files: monetdb-jdbc-3.2.jre8.jar,
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26 monetdb-mcl-1.21.jre8.jar and jdbcclient.jre8.jar
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28 * Wed Jan 19 2022 Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
ffc2fc8e82ec Fixed an SQL query problem in DatabaseMetaData.getBestRowIdentifier() method when used with MonetDB Jan2022 (or newer) releases.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 611
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29 - Fixed an SQL query problem in DatabaseMetaData.getBestRowIdentifier()
ffc2fc8e82ec Fixed an SQL query problem in DatabaseMetaData.getBestRowIdentifier() method when used with MonetDB Jan2022 (or newer) releases.
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30 method when used with MonetDB Jan2022 (or newer) releases. It
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31 returned java.sql.SQLException:
ffc2fc8e82ec Fixed an SQL query problem in DatabaseMetaData.getBestRowIdentifier() method when used with MonetDB Jan2022 (or newer) releases.
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32 SELECT: with DISTINCT ORDER BY expressions must appear in select list
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33 As of MonetDB Jan2022 (11.43.5) such queries are no longer allowed.
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34 The internally used SQL query has been improved.
ffc2fc8e82ec Fixed an SQL query problem in DatabaseMetaData.getBestRowIdentifier() method when used with MonetDB Jan2022 (or newer) releases.
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36 * Thu Jan 13 2022 Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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37 - Extended JdbcClient application with support for following \d commands:
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38 \dt \dv \dSt \dSv \df \dp \dSf \dSp \dn \dSn and \ds
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39 for showing list of: user tables, user views, system tables, system views,
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40 user functions, user procedures, system functions, system procedures,
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41 user schemas, system schemas and user sequences.
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42 For more information, see the built-in help (\?) on available commands.
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44 * Thu Nov 25 2021 Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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45 - Extended FileTransferHandler utility class by adding support for reading from
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46 and writing to gzip compressed files when using file name extension .gz
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47 Also improve error handling by testing on empty file name and provide more
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48 information when invalid file name is given or other compression formats are
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49 requested. As the FileTransferHandler utility class is used by JdbcClient
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50 application, it will now also support this functionality.
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52 * Fri Nov 05 2021 Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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53 - The JdbcClient application has been extended to support the new
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54 COPY ... ON CLIENT functionality.
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55 However for security reasons you must provide an explicit new startup argument
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56 --csvdir "/absolute/path/to/csvdatafiles"
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57 or on MS Windows
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58 --csvdir "C:\\path\\to\\csvdatafiles"
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59 in order to activate the JdbcClient application to down/up load data to/from
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60 the local file system.
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62 * Fri Nov 05 2021 Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
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63 - Extended the MonetDB JDBC driver with support for the ON CLIENT clause of
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64 the COPY statements. To make use of this functionality you must first
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65 register handlers for upload and download of data.
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66 The MonetConnection class has been extended with 2 methods:
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67 public void setUploadHandler(UploadHandler uploadHandler)
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68 public void setDownloadHandler(DownloadHandler downloadHandler)
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69 The MonetDB JDBC driver API has been extended with interfaces:
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70 public interface org.monetdb.jdbc.MonetConnection.UploadHandler
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71 public interface org.monetdb.jdbc.MonetConnection.DownloadHandler
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72 See onclient.txt for more information on how to use these from Java.
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73 We also provide a utility class:
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74 public class org.monetdb.util.FileTransferHandler
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75 which provides an example implementation of the MonetConnection.UploadHandler
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76 and MonetConnection.DownloadHandler interfaces useable for reading files
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77 from or writing files to a local file system.
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79 For a complete list of changes in previous monetdb-java releases see:
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80 https://www.monetdb.org/downloads/Java/archive/ChangeLog-Archive
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