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Appendix C. MySQL Change History

Appendix C. MySQL Change History

Table of Contents

C.1. Changes in Release 5.4.x (Development)
C.1.1. Changes in MySQL 5.4.1 (Not yet released)
C.1.2. Changes in MySQL 5.4.0 (05 April 2009 Beta)
C.2. MySQL Enterprise Monitor Change History
C.2.1. Changes in MySQL Enterprise Monitor 2.1.0 (Not yet released)
C.2.2. Changes in MySQL Enterprise Monitor 2.0.6 (Not yet released)
C.2.3. Changes in MySQL Enterprise Monitor 2.0.5 (18th March 2009)
C.2.4. Changes in MySQL Enterprise Monitor 2.0.4 (5th February 2009)
C.2.5. Changes in MySQL Enterprise Monitor 2.0.3 (23rd January 2009)
C.2.6. Changes in MySQL Enterprise Monitor 2.0.2 (14th January 2009)
C.2.7. Changes in MySQL Enterprise Monitor 2.0.1 (15th December 2008)
C.2.8. Changes in MySQL Enterprise Monitor 2.0.0 (11th December 2008)
C.3. MySQL Connector/ODBC (MyODBC) Change History
C.3.1. Changes in MySQL Connector/ODBC 5.1.6 (Not yet released)
C.3.2. Changes in MySQL Connector/ODBC 5.1.5 (18 August 2008)
C.3.3. Changes in MySQL Connector/ODBC 5.1.4 (15 April 2008)
C.3.4. Changes in MySQL Connector/ODBC 5.1.3 (26 March 2008)
C.3.5. Changes in MySQL Connector/ODBC 5.1.2 (13 February 2008)
C.3.6. Changes in MySQL Connector/ODBC 5.1.1 (13 December 2007)
C.3.7. Changes in MySQL Connector/ODBC 5.1.0 (10 September 2007)
C.3.8. Changes in MySQL Connector/ODBC 5.0.12 (Never released)
C.3.9. Changes in MySQL Connector/ODBC 5.0.11 (31 January 2007)
C.3.10. Changes in MySQL Connector/ODBC 5.0.10 (14 December 2006)
C.3.11. Changes in MySQL Connector/ODBC 5.0.9 (22 November 2006)
C.3.12. Changes in MySQL Connector/ODBC 5.0.8 (17 November 2006)
C.3.13. Changes in MySQL Connector/ODBC 5.0.7 (08 November 2006)
C.3.14. Changes in MySQL Connector/ODBC 5.0.6 (03 November 2006)
C.3.15. Changes in MySQL Connector/ODBC 5.0.5 (17 October 2006)
C.3.16. Changes in Connector/ODBC 5.0.3 (Connector/ODBC 5.0 Alpha 3) (20 June 2006)
C.3.17. Changes in Connector/ODBC 5.0.2 (Never released)
C.3.18. Changes in Connector/ODBC 5.0.1 (Connector/ODBC 5.0 Alpha 2) (05 June 2006)
C.3.19. Changes in MySQL Connector/ODBC 3.51.27 (20 November 2008)
C.3.20. Changes in MySQL Connector/ODBC 3.51.26 (07 July 2008)
C.3.21. Changes in MySQL Connector/ODBC 3.51.25 (11 April 2008)
C.3.22. Changes in MySQL Connector/ODBC 3.51.24 (14 March 2008)
C.3.23. Changes in MySQL Connector/ODBC 3.51.23 (09 January 2008)
C.3.24. Changes in MySQL Connector/ODBC 3.51.22 (13 November 2007)
C.3.25. Changes in MySQL Connector/ODBC 3.51.21 (08 October 2007)
C.3.26. Changes in MySQL Connector/ODBC 3.51.20 (10 September 2007)
C.3.27. Changes in MySQL Connector/ODBC 3.51.19 (10 August 2007)
C.3.28. Changes in MySQL Connector/ODBC 3.51.18 (08 August 2007)
C.3.29. Changes in MySQL Connector/ODBC 3.51.17 (14 July 2007)
C.3.30. Changes in MySQL Connector/ODBC 3.51.16 (14 June 2007)
C.3.31. Changes in MySQL Connector/ODBC 3.51.15 (07 May 2007)
C.3.32. Changes in MySQL Connector/ODBC 3.51.14 (08 March 2007)
C.3.33. Changes in MySQL Connector/ODBC 3.51.13 (Never released)
C.3.34. Changes in MySQL Connector/ODBC 3.51.12 (11 February 2005)
C.3.35. Changes in MySQL Connector/ODBC 3.51.11 (28 January 2005)
C.4. MySQL Connector/NET Change History
C.4.1. Changes in MySQL Connector/NET 6.0.4 (Not yet released beta)
C.4.2. Changes in MySQL Connector/NET 6.0.3 (28 April 2009 beta)
C.4.3. Changes in MySQL Connector/NET 6.0.2 (07 April 2009 beta)
C.4.4. Changes in MySQL Connector/NET 6.0.1 (02 April 2009 beta)
C.4.5. Changes in MySQL Connector/NET 6.0.0 (02 March 2009 alpha)
C.4.6. Changes in MySQL Connector/NET 5.3.0 (Not yet released)
C.4.7. Changes in MySQL Connector/NET 5.2.7 (Not yet released)
C.4.8. Changes in MySQL Connector/NET 5.2.6 (28 April 2009)
C.4.9. Changes in MySQL Connector/NET 5.2.5 (19 November 2008)
C.4.10. Changes in MySQL Connector/NET 5.2.4 (13 November 2008)
C.4.11. Changes in MySQL Connector/NET 5.2.3 (19 August 2008)
C.4.12. Changes in MySQL Connector/NET 5.2.2 (12 May 2008)
C.4.13. Changes in MySQL Connector/NET 5.2.1 (27 February 2008)
C.4.14. Changes in MySQL Connector/NET 5.2.0 (11 February 2008)
C.4.15. Changes in MySQL Connector/NET 5.1.8 (Not yet released)
C.4.16. Changes in MySQL Connector/NET 5.1.7 (21 August 2008)
C.4.17. Changes in MySQL Connector/NET 5.1.6 (12 May 2008)
C.4.18. Changes in MySQL Connector/NET 5.1.5 (Not yet released)
C.4.19. Changes in MySQL Connector/NET 5.1.4 (20 November 2007)
C.4.20. Changes in MySQL Connector/NET 5.1.3 (21 September 2007 beta)
C.4.21. Changes in MySQL Connector/NET 5.1.2 (18 June 2007)
C.4.22. Changes in MySQL Connector/NET 5.1.1 (23 May 2007)
C.4.23. Changes in MySQL Connector/NET 5.1.0 (01 May 2007)
C.4.24. Changes in MySQL Connector/NET 5.0.10 (Not yet released)
C.4.25. Changes in MySQL Connector/NET 5.0.9 (Not yet released)
C.4.26. Changes in MySQL Connector/NET 5.0.8 (21 August 2007)
C.4.27. Changes in MySQL Connector/NET 5.0.7 (18 May 2007)
C.4.28. Changes in MySQL Connector/NET 5.0.6 (22 March 2007)
C.4.29. Changes in MySQL Connector/NET 5.0.5 (07 March 2007)
C.4.30. Changes in MySQL Connector/NET 5.0.4 (Not released)
C.4.31. Changes in MySQL Connector/NET 5.0.3 (05 January 2007)
C.4.32. Changes in MySQL Connector/NET 5.0.2 (06 November 2006)
C.4.33. Changes in MySQL Connector/NET 5.0.1 (01 October 2006)
C.4.34. Changes in MySQL Connector/NET 5.0.0 (08 August 2006)
C.4.35. Changes in MySQL Connector/NET 1.0.11 (Not yet released)
C.4.36. Changes in MySQL Connector/NET 1.0.10 (24 August 2007)
C.4.37. Changes in MySQL Connector/NET 1.0.9 (02 February 2007)
C.4.38. Changes in MySQL Connector/NET 1.0.8 (20 October 2006)
C.4.39. Changes in MySQL Connector/NET 1.0.7 (21 November 2005)
C.4.40. Changes in MySQL Connector/NET 1.0.6 (03 October 2005)
C.4.41. Changes in MySQL Connector/NET 1.0.5 (29 August 2005)
C.4.42. Changes in MySQL Connector/NET 1.0.4 (20 January 2005)
C.4.43. Changes in MySQL Connector/NET 1.0.3 (12 October 2004 gamma)
C.4.44. Changes in MySQL Connector/NET 1.0.2 (15 November 2004 gamma)
C.4.45. Changes in MySQL Connector/NET 1.0.1 (27 October 2004 beta)
C.4.46. Changes in MySQL Connector/NET 1.0.0 (01 September 2004)
C.4.47. Changes in MySQL Connector/NET Version 0.9.0 (30 August 2004)
C.4.48. Changes in MySQL Connector/NET Version 0.76
C.4.49. Changes in MySQL Connector/NET Version 0.75
C.4.50. Changes in MySQL Connector/NET Version 0.74
C.4.51. Changes in MySQL Connector/NET Version 0.71
C.4.52. Changes in MySQL Connector/NET Version 0.70
C.4.53. Changes in MySQL Connector/NET Version 0.68
C.4.54. Changes in MySQL Connector/NET Version 0.65
C.4.55. Changes in MySQL Connector/NET Version 0.60
C.4.56. Changes in MySQL Connector/NET Version 0.50
C.5. MySQL Visual Studio Plugin Change History
C.5.1. Changes in MySQL Visual Studio Plugin 1.0.3 (Not yet released)
C.5.2. Changes in MySQL Visual Studio Plugin 1.0.2 (Not yet released)
C.5.3. Changes in MySQL Visual Studio Plugin 1.0.1 (4 October 2006)
C.5.4. Changes in MySQL Visual Studio Plugin 1.0.0 (4 October 2006)
C.6. MySQL Connector/J Change History
C.6.1. Changes in MySQL Connector/J 5.1.x
C.6.2. Changes in MySQL Connector/J 5.0.x
C.6.3. Changes in MySQL Connector/J 3.1.x
C.6.4. Changes in MySQL Connector/J 3.0.x
C.6.5. Changes in MySQL Connector/J 2.0.x
C.6.6. Changes in MySQL Connector/J 1.2b (04 July 1999)
C.6.7. Changes in MySQL Connector/J 1.2.x and lower
C.7. MySQL Connector/MXJ Change History
C.7.1. Changes in MySQL Connector/MXJ 5.0.6 (04 May 2007)
C.7.2. Changes in MySQL Connector/MXJ 5.0.5 (14 March 2007)
C.7.3. Changes in MySQL Connector/MXJ 5.0.4 (28 January 2007)
C.7.4. Changes in MySQL Connector/MXJ 5.0.3 (24 June 2006)
C.7.5. Changes in MySQL Connector/MXJ 5.0.2 (15 June 2006)
C.7.6. Changes in MySQL Connector/MXJ 5.0.1 (Never released)
C.7.7. Changes in MySQL Connector/MXJ 5.0.0 (09 December 2005)
C.8. MySQL Connector/C++ Change History
C.8.1. Changes in MySQL Connector/C++ 1.0.x
C.9. MySQL Proxy Change History
C.9.1. Changes in MySQL Proxy 0.7.0 (Not yet released)
C.9.2. Changes in MySQL Proxy 0.6.1 (06 February 2008)
C.9.3. Changes in MySQL Proxy 0.6.0 (11 September 2007)
C.9.4. Changes in MySQL Proxy 0.5.1 (30 June 2007)
C.9.5. Changes in MySQL Proxy 0.5.0 (19 June 2007)

This appendix lists the changes from version to version in the MySQL source code through the latest version of MySQL 5.4, which is currently MySQL 5.4.0. Starting with MySQL 5.0, we began offering a new version of the Manual for each new series of MySQL releases (5.0, 5.1, and so on). For information about changes in previous release series of the MySQL database software, see the corresponding version of this Manual. For information about legacy versions of the MySQL software through the 4.1 series, see MySQL 3.23, 4.0, 4.1 Reference Manual.

We update this section as we add new features in the 5.4 series, so that everybody can follow the development process.

Note that we tend to update the manual at the same time we make changes to MySQL. If you find a recent version of MySQL listed here that you can't find on our download page (http://dev.mysql.com/downloads/), it means that the version has not yet been released.

The date mentioned with a release version is the date of the last Bazaar ChangeSet on which the release was based, not the date when the packages were made available. The binaries are usually made available a few days after the date of the tagged ChangeSet, because building and testing all packages takes some time.

The manual included in the source and binary distributions may not be fully accurate when it comes to the release changelog entries, because the integration of the manual happens at build time. For the most up-to-date release changelog, please refer to the online version instead.

C.1. Changes in Release 5.4.x (Development)

An overview of which features were added in MySQL 5.4 can be found here: Section 1.4.1, “What Is New in MySQL 5.4”.

For a full list of changes, please refer to the changelog sections for each individual 5.4 release.

C.1.1. Changes in MySQL 5.4.1 (Not yet released)

Currently, this release does not differ from 5.4.0 except that binary distributions are built on all MySQL-supported platforms.

C.1.2. Changes in MySQL 5.4.0 (05 April 2009 Beta)

Binary MySQL 5.4.0 distributions are available as 64-bit builds for Solaris 10-x86_64, Solaris10-SPARC, and Linux x86_64-glibc23.

If you use a source distribution, the BUILD/build_mccge.sh script can be used to configure and build MySQL 5.4.0. Run this script with the --help option to see the available options.

Functionality added or changed:

  • Incompatible Change: The following InnoDB system variable changes were made:

    (Bug#42607, Bug#42608)

  • Incompatible Change: If you upgrade to MySQL 5.4 from an existing MySQL 5.1 installation, an issue may occur due to InnoDB log file configuration changes. MySQL 5.4 increases the default value of innodb_log_files_in_group from 2 to 3. It also increases the default value of innodb_log_file_size from 5MB to 128MB and the minimum value of innodb_log_file_size from 1MB to 32MB.

    For an upgrade, it is necessary to account for these changes. There are two ways to do so:

    1. Configure MySQL 5.4 to use your current configuration values. This can be done only if your current InnoDB log file size is at least as large as the new minimum size of 32MB. For example, if you use the previous default number of files (2), configured to a size of 64MB each, put these lines in your server's my.cnf file before starting the 5.4 server:

      [mysqld]
      innodb_log_files_in_group=2
      innodb_log_file_size=64M
      
    2. Discard the old InnoDB log files and let MySQL 5.4 create new ones. This can be done regardless of your current configuration values, but it is necessary to shut down your current server cleanly so that no outstanding transaction information remains in the log. The procedure to use depends on the value of innodb_fast_shutdown:

      • If innodb_fast_shutdown is not set to 2: Stop your current MySQL server and make sure that it shuts down without errors (to ensure that there is no information for outstanding transactions in the log). Copy the old log files into a safe place in case something went wrong during the shutdown and you need them to recover the tablespace. Delete the old log files and edit my.cnf if necessary to specify the desired log file configuration. Then upgrade to MySQL 5.4 and start the new server. mysqld sees that no InnoDB log files exist at startup and creates new ones.

      • If innodb_fast_shutdown is set to 2: Shut down your current server, set innodb_fast_shutdown to 1, and restart the server. The server should be allowed to recover. Then you should shut down the server again and follow the procedure described in the preceding item to change InnoDB log file size. Set innodb_fast_shutdown back to 2 and start the MySQL 5.4 server.

  • The Instance Manager (mysqlmanager) has been discontinued and is no longer provided in MySQL releases.

Bugs fixed:

  • The server unnecessarily acquired a query cache mutex even with the query cache disabled, resulting in a small performance decrement. (Bug#38551)

C.2. MySQL Enterprise Monitor Change History

This appendix lists the changes to the MySQL Enterprise Monitor, beginning with the most recent release. Each release section covers added or changed functionality, bug fixes, and known issues, if applicable. All bug fixes are referenced by bug number and include a link to the bug database. Bugs are listed in order of resolution. To find a bug quickly, search by bug number.

C.2.1. Changes in MySQL Enterprise Monitor 2.1.0 (Not yet released)

This section documents all changes and bug fixes that have been applied since the release of MySQL Enterprise Monitor, version 2.0.6.

Functionality added or changed:

  • The agent should be able to run as a non-root user. However, the startup scripts always started it as root.

    The agent chassis now has a new option --user to drop privileges after being started as root. Note, this does not work when not started as superuser, nor on Windows.

    A new dialog box has also been added to the agent installer. The dialog has the following text: “The agent does not need to run with root user privileges. The agent will switch to the user account provided below when started by the root user.

    The dialog also has a text field to allow the entry of the user account.

    A new parameter was also added to the mysql-monitor-agent.ini file. The parameter has the format user=xxx, where xxx is the user account to be used. (Bug#33778)

Bugs fixed:

  • The recommendation for the rule Table Cache Not Optimal says:

    Recommended Action
    SET GLOBAL table_cache = (64 + 16);

    But an error was generated on executing that query:

    mysql> SET GLOBAL table_cache = (64 + 16);
    ERROR 1193 (HY000): Unknown system variable 'table_cache'
    
    mysql> select version();
    +------------+
    | version()  |
    +------------+
    | 5.1.31-log |
    +------------+
    1 row in set (0.01 sec)

    (Bug#44602)

  • The Mac OS X version of the Service Manager uses the system JRE. The system JRE loads the libraries located in /Library/Java/Extensions. As libraries in the extensions directory take precedence over other libraries, this caused conflicts when user extension libraries were installed there, as these would be used by the JRE when running Service Manager, instead of the shipped libraries. This happened when Java-related products were installed such as Connector/J, Spring, and Hibernate.

    This fix stops user-installed extension libraries from being used when the JRE runs the Service Manager, thus giving a “pristine” environment with no library collisions. (Bug#44157)

  • Accessing the Query Analyzer tab caused a full table scan to take place on the MySQL Enterprise Monitor database. (Bug#43989)

  • The Replication Group was renamed back to its default name after a new topology was discovered. (Bug#43816)

  • A new topology was not discovered after the previous replication group was renamed. (Bug#43815)

  • On Unix systems, executing the command:

    ./mysqlmonitorctl.sh stop

    did not make sure that mysqld was shutdown before finishing.

    This resulted in a situation such as the following:

    # /opt/mysql/enterprise/monitor-2.0.0.7092/mysqlmonitorctl.sh stop
    Using CATALINA_BASE:   /opt/mysql/enterprise/monitor/apache-tomcat
    Using CATALINA_HOME:   /opt/mysql/enterprise/monitor/apache-tomcat
    Using CATALINA_TMPDIR: /opt/mysql/enterprise/monitor/apache-tomcat/temp
    Using JRE_HOME:       /opt/mysql/enterprise/monitor-2.0.0.7092/java
    Stopping tomcat service ... [ OK ]
    /opt/mysql/enterprise/monitor-2.0.0.7092/mysqlmonitorctl.sh : mysql stopped
    

    However, running the following command a few minutes later showed that the MySQL server was still running:

    # /opt/mysql/enterprise/monitor-2.0.0.7092/mysqlmonitorctl.sh status
    MySQL Network MySQL is running
    MySQL Network Tomcat is not running
    

    (Bug#43803)

  • The MySQL Enterprise Monitor upgrade installer incorrectly replaced the AdvisorScript.jar in <instDir>/apache-tomcat/webapps/ROOT/WEB-INF/lib/ with the default Advisor JAR. (Bug#43773)

  • The SNMP trap source IP was always set to 127.0.0.1. (Bug#43738)

  • The installer exited with a return code 0, even if an error was detected and reported to the user during the installation.

    .../mysqlmonitor-2.1.0.1015-linux-x86-64bit-installer.bin --mode unattended --installdir
    /data0/merlin/monitoring/2.1.0.1015/host/38080 --tomcatport 38080 --tomcatshutdownport
    38503 --tomcatsslport 38443 --dbport 33300 --usessl 1 --adminuser **user** --adminpassword **pwd**
    Error running /data0/merlin/monitoring/2.1.0.1015/host/38080/mysql/bin/mysql
    --defaults-file=/data0/merlin/monitoring/2.1.0.1015/host/38080/mysql/my.cnf -S
    /data0/merlin/monitoring/2.1.0.1015/qa-merlin/38080/mysql/tmp/mysql.sock -u root -D mysql
    -e "update user set Password = PASSWORD('**pwd**') where User = 'root'; update user set
    User = '**user**' where User = 'root';delete from user where User = '';flush privileges;"
    : ERROR 2002 (HY000): Can't connect to local MySQL server through socket
    '/data0/merlin/monitoring/2.1.0.1015/host/38080/mysql/tmp/mysql.sock' (2)

    (Bug#43676)

  • The agent created the mysql.inventory table with an engine type of InnoDB, instead of MyISAM, when InnoDB was specified as the default engine type in my.cnf. This happened because the agent did not explicitly specify the table engine type to be of MyISAM. (Bug#43551)

  • When a trailing space, or tab character, was added at the end of a parameter in the config.properties file, MySQL Enterprise Monitor failed to start and generated the following errors in log:

    ERROR [Thread-1:org.springframework.web.context.ContextLoader] Context initialization
    failed
    ...
    Caused by: java.sql.SQLException: Illegal connection port value '13306'
    ...

    Resolving the problem required detailed log analysis because the configuration file did not show any apparent problems. (Bug#43540)

  • If a host was not a slave during the initial discovery phase, then it would not be displayed in the Replication tab if it subsequently became a slave.

    This was because after the initial discovery phase, if a host did not have slavestatus present, no subsequent checks were made to check for the host being a slave. It was therefore missed for the purposes of replication discovery and never showed in the Replication tab. (Bug#42997)

  • Heat Chart rules could not be disabled or unscheduled. (Bug#42932)

  • There were four columns added to the SHOW SLAVE STATUS query in MySQL Server 5.1: Last_IO_Errno, Last_IO_Error, Last_SQL_Errno, and Last_SQL_Error.

    However, these were not displayed within the Replication tab. (Bug#42811)

  • The installer used to upgrade from version 1.3 corrupted passwords containing the “?” character. (Bug#42452)

  • Sun multi-core processors caused all cores to be reported on the meta information page.

    The larger T-series SPARC processors have 32+ cores. This caused the meta information page in the Dashboard to scroll as it reported each one. (Bug#42355)

  • The username field for new users was populated by the last username used.

    When creating a new user for the second time in Dashboard, the previously created username appeared in the dialog. (Bug#42314)

  • The my.cnf file for the Enterprise Monitor internal database had the following configuration item:

    innodb_autoextend_increment = 50M
    

    This generated the error:

    16:36:23 [Warning] option 'innodb_autoextend_increment': unsigned value 52428800
    adjusted to 1000
    

    This variable is interpreted as being specified in MB, so 50M would be 50 TB. Such a high value results in the variable being adjusted to 1000 MB.

    The value in the configuration file should be:

    innodb_autoextend_increment = 50
    

    (Bug#42096)

  • A number of Advisor rules had advice text that had not been translated into Japanese. The Advisors that contained untranslated rules included Performance, Schema and Security. (Bug#42067)

  • OM_REFRESH was not supported by MySQL Proxy, it caused an abort().

    shell>  ./mysql-proxy --proxy-backend-addresses=192.168.250.3:3306
    network-mysqld-proxy.c.3524: COM_(0x07) is not handled
    Aborted (core dumped)
    
    (gdb) bt
    0x00b1b402 in ?? ()
    0x00cbaf30 in raise () from /lib/i686/nosegneg/libc.so.6
    0x00cbc811 in abort () from /lib/i686/nosegneg/libc.so.6
    0x08061efc in IA__g_logv at gmessages.c:497
    0x08061f66 in IA__g_log  at gmessages.c:517
    0x08054645 in proxy_read_query_result  at network-mysqld-proxy.c:3522
    0x0804c5f4 in plugin_call  at network-mysqld.c:977
    0x0804d45a in network_mysqld_con_handle at network-mysqld.c:1520
    0x08057cb9 in event_process_active (base=0x978b260) at event.c:331
    0x08057e64 in event_base_loop (base=0x978b260, flags=0) at event.c:449
    0x08057d1c in event_base_dispatch (event_base=0x978b260) at event.c:351
    0x0804d9d0 in network_mysqld_thread (_srv=0x9789008) at network-mysqld.c:1768
    0x0804b84a in main (argc=1, argv=0xbfc4fe84) at mysql-proxy.c:615

    (Bug#41991)

  • The MySQL Enterprise Monitor file my.cnf specified an initial size of 500M for the central tablespace. However, innodb_file_per_table was used as well, resulting in approximately 500M of space being potentially wasted. (Bug#41967)

  • After an error was generated due to an incorrect password while trying to create a new user, the following error was obtained when subsequently attempting to create a valid new user:

    U0002 You must log in to access the requested resource

    (Bug#41384)

  • SNMP trap messages were sending 127.0.0.1 as the IP address, and there was no feature to allow the user to configure the IP address contained in the SNMP message, which would have been useful for troubleshooting. (Bug#41361)

  • Allowing the heat chart rules to be set to unscheduled caused the user interface to appear broken. (Bug#41312)

  • Graphs were incorrect for data that did not change. The graphs appeared as if no data had been gathered.

    The Hit Ratios graph had gaps in it where there had not been any activity on the parameters being monitored. For instance, if MyISAM tables were not used, then no Key Cache hit ratio series was plotted, even though the variables were still being collected. (Bug#41232)

  • When creating a new Database Administrator user in FireFox 2 the following error message was generated:

    U0002 You must log in to access the requested resource.

    This occurred in a new installation using the default administrator account. No Query Analysis permissions were given. However, the operation worked correctly using the Safari web browser. (Bug#41032)

  • The Manage Servers page did not refresh in a manner consistent with other pages. This meant that changes to configuration made by others would not be reflected on the page. Also, changes in the status of the servers were not displayed automatically. (Bug#40792)

  • The agent installer for Solaris 8 x86 32-bit was missing. (Bug#40248)

  • Even though Query Analysis was disabled through the user interface, the queries that go through the agent were still being collected.

    When Query Analysis was turned back on in the user interface, those queries were then displayed. (Bug#40032)

  • Alerts sent from MySQL Enterprise Monitor used the GMT timezone, for example:

    Time: 2008-09-17 19:41:08 GMT

    That was not convenient for users, as their timezones may not have been GMT. (Bug#39504)

  • The MySQL Enterprise Monitor upgrade installer replaced the my.cnf file. This resulted in the loss of any changes that had been made to the configuration file. (Bug#36528)

  • If the “On Save send test trap” checkbox was checked when the Save button was clicked and the locale was set to Japanese, an error occurred. The orange error banner was displayed at the top of the page with the error message in Japanese. (Bug#32069)

C.2.2. Changes in MySQL Enterprise Monitor 2.0.6 (Not yet released)

This section documents all changes and bug fixes that have been applied since the release of MySQL Enterprise Monitor, version 2.0.5.

Bugs fixed:

  • An error was generated when an attempt was made to rename a Replication Group to one that had previously been deleted. (Bug#43846)

  • A new topology was not discovered after the previous replication group was renamed. (Bug#43815)

  • On Unix systems, executing the command:

    ./mysqlmonitorctl.sh stop

    did not make sure that mysqld was shutdown before finishing.

    This resulted in a situation such as the following:

    # /opt/mysql/enterprise/monitor-2.0.0.7092/mysqlmonitorctl.sh stop
    Using CATALINA_BASE:   /opt/mysql/enterprise/monitor/apache-tomcat
    Using CATALINA_HOME:   /opt/mysql/enterprise/monitor/apache-tomcat
    Using CATALINA_TMPDIR: /opt/mysql/enterprise/monitor/apache-tomcat/temp
    Using JRE_HOME:       /opt/mysql/enterprise/monitor-2.0.0.7092/java
    Stopping tomcat service ... [ OK ]
    /opt/mysql/enterprise/monitor-2.0.0.7092/mysqlmonitorctl.sh : mysql stopped
    

    However, running the following command a few minutes later showed that the MySQL server was still running:

    # /opt/mysql/enterprise/monitor-2.0.0.7092/mysqlmonitorctl.sh status
    MySQL Network MySQL is running
    MySQL Network Tomcat is not running
    

    (Bug#43803)

  • The MySQL Enterprise Monitor upgrade installer incorrectly replaced the AdvisorScript.jar in <instDir>/apache-tomcat/webapps/ROOT/WEB-INF/lib/ with the default Advisor JAR. (Bug#43773)

  • The agent created the mysql.inventory table with an engine type of InnoDB, instead of MyISAM, when InnoDB was specified as the default engine type in my.cnf. This happened because the agent did not explicitly specify the table engine type to be of MyISAM. (Bug#43551)

  • If a host was not a slave during the initial discovery phase, then it would not be displayed in the Replication tab if it subsequently became a slave.

    This was because after the initial discovery phase, if a host did not have slavestatus present, no subsequent checks were made to check for the host being a slave. It was therefore missed for the purposes of replication discovery and never showed in the Replication tab. (Bug#42997)

C.2.3. Changes in MySQL Enterprise Monitor 2.0.5 (18th March 2009)

This section documents all changes and bug fixes that have been applied since the release of MySQL Enterprise Monitor, version 2.0.4.

Bugs fixed:

  • The FreeBSD 7 Agent was inadvertently a Linux binary.

    shell> file mysqlmonitoragent-2.0.5.7153-freebsd7-x86-32bit-installer.bin
    mysqlmonitoragent-2.0.5.7153-freebsd7-x86-32bit-installer.bin: ELF 32-bit LSB executable,
    Intel 80386, version 1 (SYSV), for GNU/Linux 2.2.5, dynamically linked (uses shared libs),
    stripped

    (Bug#44263)

  • Calling the Agent with the option --agent-run-os-tests resulted in a crash. This happened on Linux x86-64 systems. The resultant stack trace was:

    (qa-merlin)
    2009-03-04 16:39:42: (critical) chassis.c:1097: could not raise RLIMIT_NOFILE to 8192,
    Invalid argument (22). Current limit still 1024.
    sigar-test-all.c.124 (test_sigar_pid_get):
      pid = 5188
    sigar-test-all.c.106 (test_sigar_mem_get):
    ...cut...
    sigar-test-all.c.427 (test_sigar_file_system_list_get): (items = 13)
    [0]
      fs.dirname = /
      fs.devname = /dev/mapper/vg00-root
      fs.typename = local
      fs.sys-type-name = ext3
      fs.type = 2
      fsusage.total = 15481840
      fsusage.free = 14116140
      fsusage.used = 1365700
      fsusage.avail = 13329708
      fsusage.files = 1966080
      fsusage.use_percent = 0.100000
    [0]
      diskusage.reads = 315302
      diskusage.writes = 6318240
      diskusage.write_bytes = 25879511040
      diskusage.read_bytes = 6561092608
      diskusage.queue = 47457530080206
    Segmentation fault
    

    On some systems no output was shown, other than the message “Segmentation fault”. (Bug#43381)

  • Following a change in the replication configuration, MySQL Enterprise Monitor did not display the new topology correctly. (Bug#43240)

  • When a data collection became invalid, the agent sent NULLs for those collection values. However, the timestamps that it sent with the values were the timestamps from the last valid value that was collected.

    Due to key constraints on the Service Manager side, MySQL Enterprise Monitor disregarded anything sent with duplicate timestamps, thus the NULLs received from the agent were never processed. Some mechanisms, such as replication discovery, depend on the NULLs to identify a situation where data has become invalid. (Bug#43239)

  • MySQL Enterprise Monitor did not add a log entry each time data was purged. The log entry should have noted how many rows of each type of data were purged (historical data, logs, quan data). (Bug#43159)

  • MySQL Enterprise Monitor generated a stack overflow. This was as a result of a bug in Hibernate, which caused Hibernate to enter infinite recursion while trying to load a relationship. (Bug#43107)

  • The “Table Cache Set Too Low For Startup” and “Table Cache Not Optimal” rules were not supported on MySQL 5.1 because the table_cache system variable was deprecated and replaced with table_open_cache. (Bug#42663)

  • Migrated server was not completely deleted.

    In a Monitor that had been updated from 1.3.2 to 2.0.4, with 2 database servers queued for migration, if a server being migrated was deleted, or a migrated server was deleted, this would not be reflected in the user interface or in the license count, until Tomcat was restarted. (Bug#42604)

  • The installer used to upgrade from version 1.3 corrupted passwords containing the “?” character. (Bug#42452)

  • Sun multi-core processors caused all cores to be reported on the meta information page.

    The larger T-series SPARC processors have 32+ cores. This caused the meta information page in the Dashboard to scroll as it reported each one. (Bug#42355)

  • If an attempt was made to disable a rule using the link next to the rule, the following error message was generated:

    U0002 You must log in to access the requested resource. Go to login page.

    However, clicking on the link did not prompt the user to login again. (Bug#42313)

  • Changing ssh-agent from OpenSSH or specifying a malevolent value of agent-host-id, could inject data into the monitored MySQL Server.

    For example, setting agent-host-id to the value “I'm a test” would result in the following message in the error log:

    2009-01-23 15:45:11: ((error)) agent_mysqld.c:281: mysql_real_query('INSERT INTO
    mysql.inventory  (name, value) VALUES ( 'hostid', 'I'm a test' )') on 'mysql' failed: You
    have an error in your SQL syntax; check the manual that corresponds to your MySQL server
    version for the right syntax to use near 'm a test' )' at line 1 (mysql-errno = 1064)
    

    (Bug#42306)

  • When SHOW GLOBAL STATUS returned a value greater than 214748364, it was sent to the Service Manager as 214748364. (Bug#42245)

  • The Agent failed to identify local sockets as local on Mac OS X 10.4.

    If the Agent was configured to use a Unix domain socket on Mac OS X 10.4, it did not treat the connection as local and failed to provide CPU and memory information to MySQL Enterprise Monitor. This is shown in the log file:

    2009-01-20 18:15:02: (message) network-socket.c:752: is-local family 0 != 1
    2009-01-20 18:15:02: (message) agent_mysqld.c:322: [mysql] mysqld is not local or not
    directly connected

    However, this problem did not happen on Mac OS X 10.5. (Bug#42220)

  • Some graphs on the Graph tab were not updated after the page was refreshed, or Update was clicked.

    The only way to get an updated graph was to change the graph size (in pixels) and then click Update. (Bug#42162)

  • The my.cnf file for the Enterprise Monitor internal database had the following configuration item:

    innodb_autoextend_increment = 50M
    

    This generated the error:

    16:36:23 [Warning] option 'innodb_autoextend_increment': unsigned value 52428800
    adjusted to 1000
    

    This variable is interpreted as being specified in MB, so 50M would be 50 TB. Such a high value results in the variable being adjusted to 1000 MB.

    The value in the configuration file should be:

    innodb_autoextend_increment = 50
    

    (Bug#42096)

  • A number of Advisor rules had advice text that had not been translated into Japanese. The Advisors that contained untranslated rules included Performance, Schema and Security. (Bug#42067)

  • The Service Manager did not handle the case where the agent failed to supply a valid master_ip. The Service Manager would then not restart. The logs contained the following:

    2009-01-09 14:39:50,472 ERROR [main:org.springframework.web.context.ContextLoader] Context
    initialization failed
    org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with
    name 'serverConnectionMonitor' defined in ServletContext resource
    [/WEB-INF/applicationContext.xml]: Unsatisfied dependency expressed through constructor
    argument with index 2 of type [com.mysql.etools.monitor.bo.Manager]: Error creating bean
    with name 'manager' defined in ServletContext resource [/WEB-INF/applicationContext.xml]:
    Invocation of init method failed; nested exception is
    com.mysql.etools.monitor.pom.UnsupportedAttributeException:
    101c6b5b-15eb-49aa-916c-843c51b28d38: mysql.slavestatus.Master_ip

    (Bug#42005)

  • Having too many users with strong privileges generated Service Manager errors and events failed to be triggered.

    If there were approximately 1000 users with full privileges and the value of group_concat_max_len was set to 100001, the size of the data that the agent sent to the Service Manager was too large and caused Service Manager errors. Also, the Security event “Account has Strong MySQL privileges” did not trigger. (Bug#41987)

  • Query Analyzer's Query Type filter for SELECT ignored statements starting with parenthesis.

    If you sent a statement through Query Analyzer starting with parenthesis, such as:

    (SELECT 1 FROM dual);

    and then attempted to filter for SELECT queries only, queries starting with parenthesis were not displayed. (Bug#41968)

  • The agent angel process was spawning too soon, which caused a duplicate UUID error.

    g_error() logged a fatal error, and called abort(). This terminated the program. Then the angel respawned with the same UUID, but with a -1 session resync request, which the MEM server denied because the old session was still active. This resulted in a permissions denied error (1142) on the mysql.inventory table.

    2008-12-17 18:58:58: (message) agent_mysqld.c:313: [mysql] mysqld is local and directly connected
    2008-12-17 18:58:58: ((error)) agent_mysqld.c:444: [mysql] mysql_real_query("SELECT value
    FROM mysql.inventory WHERE name = 'uuid'") failed: SELECT command denied to user
    'ent_agent'@'127.0.0.1' for table 'inventory' (errno=1142)
    2008-12-17 18:58:58: (debug) chassis.c:282: 15134 returned: 15134
    2008-12-17 18:58:58: (message) chassis.c:304: [angel] PID=15134 died on signal=6 (it used
    0 kBytes max) ... waiting 3min before restart
    2008-12-17 18:59:00: (debug) chassis.c:244: we are the child: 15149
    2008-12-17 18:59:00: (message) chassis.c:259: [angel] we try to keep PID=15149 alive
    2008-12-17 18:59:00: (debug) chassis.c:277: waiting for 15149
    2008-12-17 18:59:00: (message) mysql-proxy 0.7.0 started
    2008-12-17 18:59:00: (message) MySQL Monitor Agent 2.0.0.7111 started.
    

    (Bug#41600)

  • master_uuid discovery did not work with MySQL Server versions prior to 5.1. master_uuid did not show in any Agent to Monitor communications, and no log or error messages were generated.

    However, now the bug has been fixed, an Agent monitoring a 5.0 MySQL Server would register the following in its logs:

    ...
     <classname>slavestatus</classname>
     <instance>12515cdc-8c00-4223-9d2a-2666a403512c</instance>
     <attribute>Master_uuid</attribute>
    </target>
    <utc>2009-03-03T19:58:05.700Z</utc>
    <value>b2fd9f86-6e42-49f2-b930-e8fb3e728179</value>
    

    Note the presence of master_uuid. (Bug#41525)

  • The master_uuid was not used for replication topology discovery.

    The agent collected master_uuid by reading the master.info file, and then running a SELECT directly against its master. This was to try and read the mysql.inventory table on the master to obtain the instance master_uuid.

    However, this was not being used correctly by the replication topology discovery within the server. (Bug#41519)

  • Queries such as SELECT against the master mysql.inventory was not logged on slave-based agents. This made diagnosing topology discovery issues difficult. (Bug#41518)

  • After an error was generated due to an incorrect password while trying to create a new user, the following error was obtained when subsequently attempting to create a valid new user:

    U0002 You must log in to access the requested resource

    (Bug#41384)

  • Agent startup failed on Solaris 10. The error generated was:

    # ./mysql-monitor-agent start
    Bad string
    ERROR! /opt/mysql/enterprise/agent/etc/mysql-monitor-agent.ini has to have a
    [mysql-proxy].pid-file setting
    

    This was caused by unexpected behavior of the tr command. (Bug#41260)

  • On the Query Analysis page, if a query was clicked the minimum displayed was greater than the average. (Bug#41259)

  • In some circumstances the agent/proxy ran out of file descriptors, causing secondary failures. It could not recover from that state. The relevant part of the log file is shown here:

    2008-11-27 11:11:00: (critical) last message repeated 2 times
    2008-11-27 11:11:00: (critical) job_collect_os.c:411: sigar_cpu_info_list_get() failed
    2008-11-27 11:11:00: (critical) job_collect_os.c:445: sigar_cpu_list_get() failed
    2008-11-27 11:11:00: (critical) job_collect_os.c:411: sigar_cpu_info_list_get() failed
    2008-11-27 11:11:00: (critical) job_collect_os.c:445: sigar_cpu_list_get() failed
    2008-11-27 11:11:00: (critical) job_collect_os.c:411: sigar_cpu_info_list_get() failed
    2008-11-27 11:11:00: (critical) job_collect_os.c:445: sigar_cpu_list_get() failed
    2008-11-27 11:11:00: (critical) job_collect_os.c:411: sigar_cpu_info_list_get() failed
    2008-11-27 11:11:00: (critical) job_collect_os.c:445: sigar_cpu_list_get() failed
    2008-11-27 11:11:30: (critical) network-socket.c.292: socket(127.0.0.1:3306) failed: Too many open files (24)
    2008-11-27 11:11:30: (critical) proxy-plugin.c.1532: Cannot connect, all backends are down.
    2008-11-27 11:20:22: (critical) last message repeated 4 times
    2008-11-27 11:20:22: (critical) network-io.c:215:
    curl_easy_perform('https://user:password@merlin-dashboard:443/heartbeat') failed:
    SSL connection timeout (curl-error = 'Timeout was reached' (28), os-error = 'Connection refused' (111))
    

    (Bug#41068)

  • If an installation of Service Manager 2.0.0.7102 included a backup directory, due to a previous upgrade, and was upgraded using at least Service Manager 2.0.0.7103, then the installer displayed an error message and exited.

    The error message displayed was:

    There has been an error.
    Error renaming /Applications/mysql/enterprise/monitor/apache-tomcat to
    /Applications/mysql/enterprise/monitor/backup/apache-tomcat
    The application will exit now
    

    (Bug#40996)

  • The Agent started without problems and connected to the master. But it was unable to perform a SELECT from the table mysql.inventory in order to obtain server information. (Bug#40933)

  • Canonical Query Text for Select -1 was displayed as SELECT -? instead of SELECT ? on the Query Analyzer tab. (Bug#40435)

  • The agent installer for Solaris 8 x86 32-bit was missing. (Bug#40248)

  • The startup scripts supplied with MySQL Network Monitoring and Advisory tool did not supply all of the LSB init.d script options required. A list of the required options can be found at the following website http://refspecs.freestandards.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/iniscrptact.html

    The required options missing include status and force-reload. The option status is used by monitoring tools and cluster software such as Red Hat Cluster, to ensure that the service is still running. The force-reload option is an alias for restart. (Bug#29848)

  • Multiple errors showed in the agent log after issuing a SHOW INNODB STATUS statement. The InnoDB Buffer Poolgraph also went blank. (Bug#27372)

C.2.4. Changes in MySQL Enterprise Monitor 2.0.4 (5th February 2009)

This section documents all changes and bug fixes that have been applied since the release of MySQL Enterprise Monitor, version 2.0.3.

Bugs fixed:

  • The Service Agent did not log connections to, and disconnects from, the monitored database.

    This meant it was not possible to check if the Agent was connected to the database by simply looking at the log file. (Bug#42403)

  • The Service Agent failed to create the mysql.inventory table. The logs displayed the following error message:

    (critical) (share/mysql-proxy/quan.lua:711) [proxy] please add SELECT permissions for
    this user on mysql.inventory to enable the QUAN feature, got Table 'mysql.inventory'
    doesn't exist

    This happened even though the Service Agent used the root account. (Bug#42389)

  • After installing Service Agent 2.0.4.7138 and then starting it with --version, the incorrect version was displayed. Although 2.0.4.7138 was installed, the Service Agent displayed the version number as 2.0.2.7138. (Bug#42263)

  • An invalid path was shown in the error message if the upgrade installer failed to find the previous install location.

    The error message is shown below, note that the error message displays a different path to that provided by the user:

    Please specify the directory that contains the previous installation of the MySQL
    Enterprise Monitor Agent
    
    Installation directory [/home/mysql/mysql/enterprise/agent]: /var/lib/mysql/agent
    
    Warning: The directory /home/mysql/mysql/enterprise/agent does not contain a a
    previous installation. Please select the right installation directory.
    Press [Enter] to continue :
    ----------------------------------------------------------------------------
    Please specify the directory that contains the previous installation of the MySQL
    Enterprise Monitor Agent

    (Bug#42200)

  • The agent password error in the Service Manager did not log the originating host, making it impossible to determine the agent that failed to log in:

    ErrorJan 5, 2009 4:56:08 PM<?xml version='1.0'?><exceptions><error><![CDATA[E1702:
    IncorrectPasswordException: [agent]]]></error></exceptions>

    (Bug#42139)

  • The Service Manager's JDBC connections did not have sql_mode set to include NO_ENGINE_SUBSTITUTION. This resulted in the failure of Data Definition Language (DDL) if the Service Manager was inadvertently pointed to an incorrect mysqld instance. (Bug#42137)

  • A number of Advisor rules had advice text that had not been translated into Japanese. The Advisors that contained untranslated rules included Performance, Schema and Security. (Bug#42067)

  • Service Agent configuration files had global read privileges on the filesystem. (Bug#41794)

  • When the log files rotated to the maximum allowed by the log4j configuration, the metadata contained in the FileAppender became out of synchronization due to a logic bug. This caused an assertion error on any subsequent request for the logs tab or data. (Bug#41593)

  • SNMP trap messages were sending 127.0.0.1 as the IP address, and there was no feature to allow the user to configure the IP address contained in the SNMP message, which would have been useful for troubleshooting. (Bug#41361)

  • On all available test systems, including SUSE Linux Enterprise Server (SLES) 9 and 10 x86-32, x86-64, IA64, and Ubuntu 6.10 x86-64, the agent memory grew incrementally within ~3 hours to ~25M.

    The agents then switched to the 'red' condition on the dashboard and no more data was reported. The agent processes were still alive.

    This was also present in MySQL Enterprise Monitor version 2.0.0.7111 on Suse 7.3, with the glibc2.2 x86 agent.

    There was no load on the monitored servers, and the problem also occurred when the “self-quan” was not configured. (Bug#41244)

  • Although the Monitor tab loaded initially, after a 64-bit MySQL server running a 32-bit MySQL Monitor Agent was clicked, a Null Pointer Exception was generated. (Bug#41164)

  • The Service Agent startup configuration did not seem to work and did not generate a log file. (Bug#40583)

  • An error generated by a rule failed to clear.

    When a rule was created with the os:disk:fs_used data item, if the instance was not a valid mount point then the Service Agent reported the error:

    2008-08-11 17:57:00: (critical) disk-get failed for all: 2

    Note the above instance was for “all”, and similar results occurred for instance “disk”.

    The issue was that upon editing the rule, or even deleting the rule, the agent still showed the above error type. Restarting the agent and the monitoring service failed to remove the error. (Bug#38709)

  • If the “On Save send test trap” checkbox was checked when the Save button was clicked and the locale was set to Japanese, an error occurred. The orange error banner was displayed at the top of the page with the error message in Japanese. (Bug#32069)

C.2.5. Changes in MySQL Enterprise Monitor 2.0.3 (23rd January 2009)

This section documents all changes and bug fixes that have been applied since the release of MySQL Enterprise Monitor, version 2.0.2.

Bugs fixed:

  • The Service Agent failed to connect to the server, and no error message was displayed in the log file.

    However, when the log verbosity level was set to message, the following message was recorded:

    2009-01-12 13:34:43: (warning) agent_mysqld.c:600: agent connecting to mysql-server
    failed: mysql_real_connect(host = '127.0.0.1', port = 3306, socket = ''): Lost connection
    to MySQL server at 'reading initial communication packet', system error: 0 (mysql-errno =
    2013)

    (Bug#42044)

  • There was a mismatch between the contents of an SNMP Trap from MySQL Enterprise Monitor and the definition given in the file MONITOR.MIB. (Bug#41912)

  • If a copy was made of a standard rule, the resulting Wiki markup was incorrect, resulting in the display of user-interface text containing HTML markup. (Bug#41375)

  • Allowing the heat chart rules to be set to unscheduled caused the user interface to appear broken. (Bug#41312)

  • When a custom rule requiring disk information was created, for example:

    [Expression]
    %disk_reads% > THRESHOLD
    
    [Thresholds]
    Critical Alert: 9000
    Warning Alert: 3000
    Info Alert: 1000
    
    [Variable Assignment]
    variables: %disk_reads%
    Data Item: os:disk:disk_reads
    Instance: /

    The following error was written to the file mysql-service-agent.log:

    2007-09-05 17:11:00: (critical) disk-get failed for c0d0p1: 2

    It therefore appeared that the Service Agent was not able to obtain the required information. (Bug#30820)

C.2.6. Changes in MySQL Enterprise Monitor 2.0.2 (14th January 2009)

This section documents all changes and bug fixes that have been applied since the release of MySQL Enterprise Monitor, version 2.0.1.

Bugs fixed:

  • The Complete Setup button was missing from the Setup page you were taken to after the current subscription expired. (Bug#41685)

  • If the host-id of the monitored instance and the host-id of the current agent did not match, the agent generated the following error message:

    Please TRUNCATE TABLE mysql.inventory on this mysql-instance and restart the agent.

    However, it did not suggest using sql_log_bin = 0. This is used for all other actions against this table so that they are not replicated to slaves, each of which has their own copy of this table. (Bug#41673)

  • The Agent did not start up when the monitored server had many databases and tables, and was under heavy load. This was because the trigger_schema query was taking too long on agent start up. (Bug#41555)

  • The Service Agent failed to install on Solaris 10 x86. The following error was generated:

    Installing
    0% ______________ 50% ______________ 100%
    ########################################
    Warning: Problem running post-install step.
    Installation may not complete correctly
    Error running /usr/local/mysqlagent/bin/mysql-monitor-agent
    --defaults-file=/usr/local/mysqlagent/etc/mysql-monitor-agent.ini
    --plugins=agent --agent-generate-uuid=true : 2008-12-12 13:06:02: (critical)
    Conversion from character set '646' to 'UTF-8' is not supported
    2008-12-12 13:06:02: (message) shutting down normally

    (Bug#41445)

  • The console/stdout appender remained in the log4j configuration, which meant that all the MySQL Enterprise Monitor server logs were duplicated to Catalina's stdout, and thus catalina.out, which was wasteful, especially as that file was not rotated or managed. (Bug#41439)

  • When creating new multiple user accounts, the first attempt worked fine. However, following attempts to create new users did not show the Query Analyzer Options in the Create User popup until the role field was changed. (Bug#41430)

  • When login privileges were required the Service Manager did not redirect the user to the login page. This resulted in error messages being displayed rather than simply redirecting the user to the login page. This problem typically occurred if it was necessary to restart Tomcat. (Bug#41320)

  • The monitor 2.0.0.7105 and 2.0.0.7122 Solaris Intel update installer quits unexpectedly. The installer exits from the GUI in the Backup of Previous Installation screen, when OpenSolaris is running on top of Sun xVM.

    The console output for both installer versions is given below:

    shell> ./mysqlmonitor-2.0.0.7105-solaris-intel-update-installer.bin
    X Error of failed request:  BadMatch (invalid parameter attributes)
      Major opcode of failed request:  73 (X_GetImage)
      Serial number of failed request:  21161
      Current serial number in output stream:  21161
    shell> ./mysqlmonitor-2.0.0.7122-solaris-intel-update-installer.bin
    X Error of failed request:  BadMatch (invalid parameter attributes)
      Major opcode of failed request:  73 (X_GetImage)
      Serial number of failed request:  21148
      Current serial number in output stream:  21148

    (Bug#41315)

  • The Rename Group function failed if the new group name was different to the current one only in the case used; for example, if “Merlin” was changed to “MERLIN”.

    The error generated was:

    U0105 This group name is already in use. Enter a different name.

    (Bug#41266)

  • The Agent returned an inventory list of all databases and tables. This information was not used by MySQL Enterprise Monitor, other than to populate the inv_databases and inv_tables tables. For large-scale deployments, where there were many databases and tables, this resulted in redundant XML messages being sent from the Agent to the Service Manager. (Bug#33150)

C.2.7. Changes in MySQL Enterprise Monitor 2.0.1 (15th December 2008)

This section documents all changes and bug fixes that have been applied since the release of MySQL Enterprise Monitor, version 2.0.0.

Bugs fixed:

  • Having an installation with over 420 master binlogs resulted in the mysql::status graph not being plotted. (Bug#41314)

  • The MySQL Enterprise Monitor installer generated a segfault on RedHat Fedora 10:

    shell> ./mysqlmonitor-2.0.0.7105-linux-x86-installer.bin
    Segmentation fault

    (Bug#41196)

C.2.8. Changes in MySQL Enterprise Monitor 2.0.0 (11th December 2008)

This section documents all changes and bug fixes that have been applied since the release of MySQL Enterprise Monitor, version 1.3.3.

Functionality added or changed:

  • Important Change: The server-name configuration parameter is deprecated. For compatibility, during an upgrade, the information will be migrated to a displayname configuration parameter within the individual instance configuration files. This configuration parameter is provided only for compatibility, as display name information is now stored within the main repository. Support for displayname is also deprecated and will be removed in a future release.

  • Important Note: The rules “32-Bit Binary Running on 64-Bit AMD Or Intel System” and “Key Buffer Size Greater Than 4 GB” occasionally do not evaluate correctly due to timing issues. This causes them to be displayed with the Severity level of “Unknown”. This is a known issue and will be resolved in future versions of MySQL Enterprise Monitor.

  • Important Note: When you start the Merlin 2.0 agent from the command line on Windows, you get the following error dialog:

    "mysql-proxy.exe - Entry Point Not Found"
    "The procedure entry point libiconv_set_relocation_prefix could not be located in the
    dynamic link library iconv.dll"

    If you click OK the agent works fine after that.

    This only occurs when starting the agent from the command line, and only when there is another version of one of the DLLs that the agent uses somewhere on the current path. This error can be avoided by opening a command prompt, typing SET PATH= to clear the path, and then starting the agent.

  • Important Note: If you are monitoring one instance of MySQL server (mysqld) and then upgrade that MySQL server, the correct version of the MySQL server is not displayed in the Dashboard. This is a known issue that will be fixed in future versions of MySQL Enterprise Monitor.

  • The following has been added to the Tomcat config.properties properties file:

         # max connections in the pool for the repository
         default.maxActive=70
    

    (Bug#40652)

  • The dashboard could be used to change the agent password to one containing the @ character, or other special characters, which subsequently caused errors. To fix this problem, special characters in passwords are now prevented by the dashboard. The list of disallowed special characters can be found at the following location: http://en.wikipedia.org/wiki/Percent-encoding#Types_of_URI_characters (Bug#37172)

  • The Query Analysis page was missing the Refresh dropdown control that the Monitor, Events, and Graphs pages had at the top. (Bug#36831)

  • The User Interface only returned error strings, without any associated error codes. This meant that if the error string was in a language that the user did not understand, it would be very difficult to determine which error actually occurred.

    The User Interface now supports error codes, as well as error strings. This change allows easier testing of multiple locales. (Bug#32131)

  • The wording was changed on the fading popup subscription alert. The text “account” was changed to “subscription”. (Bug#31492)

  • The alert thresholds for the Query Cache Advisor were changed:

     Information Warning Critical
    From 95 85 75
    To 60 50 40

    (Bug#30969)

  • The agent log file name has changed from mysql-service-agent.log to mysql-monitor-agent.log. The old log file will be retained during a upgrade install.

Bugs fixed:

  • Starting a new agent against an instance that contained many databases broke up the initial discovery packet, causing collections such as CPU usage and their graphs to fail. See also Bug#33150 and Bug#41314. (Bug#41933)

  • When altering an existing rule you had to add an empty string, "", to any threshold level that was empty. Otherwise, the rule failed to run and the resulting exceptions caused the Events page to be unusable due to duplicate key exceptions. (Bug#41310)

  • After installing the 2.0.0.7119 Dashboard the following error was generated in the logs:

    com.opensymphony.xwork2.util.OgnlValueStack  Warning  Dec 5, 2008 10:41:26 AM  Caught
    an Ognl exception while getting property titleAddition

    (Bug#41252)

  • The dc_ng_long_now table became very large partly due to an unused column begin_time. (Bug#41093)

  • Although there was a unique constraint on the user name, it was not enforced during first-time setup. This resulted in a stack trace being produced, rather than a more user-friendly error message, if the same name was used for the admin and agent accounts. (Bug#40870)

  • MySQL Enterprise Monitor server had stopped sending up/down SNMP traps. (Bug#40861)

  • The Query Analyzer's Explain Query tab did not have pop up text or a link to the documentation regarding SELECT queries. (Bug#40841)

  • When you tried to import a Trial-level advisor JAR using a Trial user account, one of the following error messages was generated:

    U0009 The uploaded Advisor jar was invalid
    U0161 Please import a Platinum level Advisor .jar to use with this Platinum level product key

    (Bug#40834)

  • Meta Info on the Dashboard did not display information for the meta data os_description. (Bug#40830)

  • Attempting to create an alias of statements such as COMMIT, ROLLBACK, BEGIN, resulted in the error:

    Can't find template commitTnx.st; group hierarchy is [HTMLFormatting]
    org.antlr.stringtemplate.StringTemplateGroup.lookupTemplate(StringTemplateGroup.java:507)
    

    (Bug#40736)

  • Trying to upgrade from 2.0.0.7088 to 2.0.0.7092 failed as there was a missing file. When the update program mysqlmonitor-2.0.0.7092-solaris-intel-update-installer.bin was run, the file /tmp/com/mysql/merlin/server/version.props could not be found. (Bug#40692)

  • On OS X with Java 1.5, Tomcat crashed on launch with the error:

    Invalid memory access of location 00000007 eip=013df179
    

    (Bug#40689)

  • When the agent was installed using the command line installer and --enableproxy 0 was specified, the installer should have removed quan.lua from the agent-item-files option in the INI file. (Bug#40551)

  • The Agent could not connect to a database with the hostname set to localhost. Doing so resulted in the error:

    (critical) the MySQL server could not be reached at socket '(null)', we will check in 10 seconds
    

    (Bug#40530)

  • The update installer for the 2.0 Monitor did not have an Is SSL support required? checkbox. Therefore, the appropriate SSL connector definition was commented out in the conf/server.xml file. (Bug#40414)

  • The Service Manager installer did not uninstall or wipe out the previous installation if you answered “Yes” to the question:

    The directory you selected already contains a MySQL installation. If you continue installation all data will be lost. Do you wish to continue?” (Bug#40410)

  • If you unchecked the Enable Proxy checkbox on the Query Analysis Configuration screen, the agent's INI file still contained proxy configuration data and was not commented out. (Bug#40272)

  • As different queries were sent through the agent it used increasing amounts of memory. (Bug#40260)

  • The Service Manager installer set the Java Virtual Machine option HeapDumpPath to <install_root>\temp on Windows and /tmp on other platforms. For consistency the HeapDumpPath directory should have been set to <install_root>\tmp on Windows. (Bug#40215)

  • When using the command line agent setup program, a socket file was not accepted for the monitored instance. (Bug#40085)

  • The language option when installing the MySQL Enterprise Monitor in Japanese using the command-line instllaer has been changed from jp to ja. (Bug#40082)

  • When monitoring MySQL 5.1.24 and above, the user used by the agent to connect to the MySQL server for monitoring must have the PROCESS privilege. (Bug#40050)

  • The check box option string “Is SSL support required?”, on the Tomcat Server Option dialog of the Monitor installation, was not correctly translated into Japanese. (Bug#39814)

  • The base application directory for the MySQL Enterprise Dashboard has been updated from http://localhost:18080/merlin to http://localhost:18080/. (Bug#39403)

  • If the Service Manager or the MySQL Server running the Repository crashed, they did not restart automatically. (Bug#39377)

  • If the agent crashed, there was no watchdog, angel or keep-alive mechanism to restart the agent and keep it running. (Bug#39374)

  • If the MySQL client libraries were located in a nonstandard location, the agent 2.0.0.7042 installer failed with a “library not found” error. (Bug#39317)

  • For the rule “Server-Enforced Data Integrity Checking Not Strict”, the Recommended Action did not display correctly. It displayed as SET sql_mode=modes, rather than SET [GLOBAL|SESSION] sql_mode=modes. (Bug#39261)

  • A query that was issued through the proxy, and that had an auto-explain performed on that query, did not give the correct response to a subsequent query of SELECT FOUND_ROWS(). (Bug#39223)

  • It was not possible to establish a connection with the Dashboard using the SSL protocol (https://). (Bug#39198)

  • When a 1.3 MySQL Enterprise Monitor installation with many rules scheduled was upgraded to 2.0, the upgraded installation was then found to have only the heat chart rules scheduled. (Bug#39043)

  • The agent installer did not allow a second agent to be installed on Windows. (Bug#38976)

  • The Dashboard incorrectly diplayed that insufficient licenses were available, even though sufficient licenses had been purchased. (Bug#38514)

  • After running the MySQL Service Agent uninstall program, the file /etc/init.d/mysql-service-agent remained present on the server. (Bug#38490)

  • The notice fader continued to display English text after you changed the locale to Japanese. (Bug#38460)

  • The Subscription Expired pop-up window referred to the “Global Preferences” page, instead of the “Global Settings” page. (Bug#38358)

  • An inappropriate time zone was used to parse user-entered date and time strings. (Bug#38323)

  • A sigar network stats error was generated on the Solaris platform:

    # /opt/mysql/enterprise/agent/bin/mysql-service-agent --version
    MySQL Service Agent - 1.2.0.7879, (glib lib=2.8.5, headers=2.8.5)
    
    SunOS mysqlprd01 5.10 Generic_127127-11 sun4v sparc SUNW,T5240
    
    2008-07-21 10:07:24: (critical) sigar_net_interface_config_primary_get() failed: 6
    2008-07-21 10:08:00: (critical) sigar_net_interface_config_primary_get() failed: 6
    
    # /opt/mysql/enterprise/agent/bin/sigar-test-all >/tmp/test.txt
    sigar_net_interface_stat_get(e1000g0:2) failed#

    (Bug#38302)

  • After deleting a server from the Settings, Manage Servers tab, at the very bottom of the page the Monitoring x instances on x host values did not reflect the deletion. (Bug#38225)

  • The MySQL Enterprise Monitor alert “INFO Alert - Users Can View All Databases On MySQL Server (v 1.5 *)” from the Security advisor was incorrect. This is because the default server behavior allows users to see databases for which they have privileges, not “all databases on server” as suggested by the alert. (Bug#38052)

  • The “Maximum Connection Limit Nearing Or Reached” advisor did not generate a new Critical Alert event when there was an open info success event. (Bug#37816)

  • The Linux IA64 installer appeared to crash. The installer appeared to crash on RH4_IA64 if called with option "--version":

    -------------------------------------------------------------------------------
    <INSTALLER> --version
    mysqlmonitorage(30704): unaligned access to 0x6000000000a8413c, ip=0x2000000003ddd5f0
    mysqlmonitorage(30704): unaligned access to 0x6000000000a84144, ip=0x2000000003ddd5f1
    mysqlmonitorage(30704): unaligned access to 0x6000000000a8414c, ip=0x2000000003ddd600
    mysqlmonitorage(30704): unaligned access to 0x6000000000a84154, ip=0x2000000003ddd601
    MySQL Enterprise Monitor Agent 0.7.0.1737 --- Built on 2008-06-25 19:31:53
    
    -------------------------------------------------------------------------------

    However, this warning is harmless and will not impact the operation of the agent. (Bug#37496)

  • If the log-level option in the agent configuration file was set to an unknown level by mistake, the init.d script appeared to enter an infinite loop. (Bug#37108)

  • Malformatted server meta information appeared on the Dashboard; RAM and Disk Space appeared under the CPU category. (Bug#36740)

  • A “rename” link incorrectly appeared next to the Upgrade category on the Manage Rules page. (Bug#36584)

  • In the case where exceptions were passed through to the User Interface, the substituted arguments in the message contained developer-only information. (Bug#36580)

  • Agent Version, Last MySQL Contact, OS Info, CPU Info, and IP Addresses were all blank on the dashboard when the agent for the selected server was not functioning. (Bug#36301)

  • mysql-monitor-agent became confused by the .DS_Store files that are created on Mac OS X. (Bug#36216)

  • The rule “Key Buffer Size Greater Than 4 GB” incorrectly triggered the following alert:

    CRITICAL Alert - Key Buffer Size Greater Than 4 GB

    However, on non-Windows systems, a key buffer size greater than 4 GB is supported. (Bug#36143)

  • Since the repository database for MySQL Enterprise Monitor uses InnoDB there was no way to reduce the size of the data files after an old log/event data purge operation. Further, the purge data operation executed once per day, and had no option to trigger the purge operation manually. (Bug#35971)

  • On the Graphs page, if all graphs were expanded, then the Time Display interval updated, the page was refreshed with the Expand All button displayed, even though all the graphs were already expanded. (Bug#35917, Bug#35133)

  • The Meta Info area of the Monitor page incorrectly reported the operating system version number for the MySQL version. (Bug#35836)

  • The rule “XA Distributed Transaction Support Enabled For InnoDB” incorrectly sent a warning when the binary log was on. (Bug#35786)

  • On the Monitor page, the time displayed for Last MySQL Contact lagged behind that for Last Agent Contact by a large amount. (Bug#35774)

  • MySQL Enterprise Monitor did not update replication settings correctly. After a slave became the master, the Adviser still referred to it as a slave. (Bug#35771)

  • The Adviser email suggested using the --log-queries-not-using-indexes option. However, this option is not available in MySQL Server versions prior to 4.1. (Bug#35770)

  • Thumbnail graphs did not update properly after a time zone change. (Bug#35756)

  • If a system had a global wait_timeout lower than the general activity of the agent, the agent was disconnected. The monitored server then logged an error and incremented Aborted_clients. (Bug#35648)

  • Alerts fired after a blackout period based on data collections that happened during the blackout. (Bug#35617)

  • The translation of the Add Row button on the Rule Definition window was incorrect. (Bug#35495)

  • An uninstallation message asked about removing Apache files, even though Apache is no longer used. (Bug#35154)

  • After updating from a previous version to the latest 1.3 version, the Query Cache Has Sub-Optimal Hit Rate was still displayed in English after setting the locale to Japanese. Note, the rule was translated correctly if the full installer was used. (Bug#35134)

  • The MySQL Enterprise Monitor uninstall dialog box had missing text when using the Japanese locale. (Bug#34982)

  • Running the installer with the --help option caused an incorrect message to be displayed. (Bug#34200)

  • When using the unattended unInstall script on Linux together with the option --env deleteUserData=yes the correct warning text was displayed. However, this text should not be displayed in unattended mode. Further, the option --env deleteUserData=yes was not displayed by the --help output. (Bug#34071)

  • Platinum Unlimited customers sometimes received a warning stating incorrectly that their subscription supported zero hosts. (Bug#34010)

  • Clicking on the resolution notes link for a closed event on the events tab showed incorrect behaviour. The popup initially showed the resolution notes, but when the resolution tab was clicked the notes disappeared and were replaced by an edit box. (Bug#33935)

  • The status on the product information page was not translated when the user locale was set to Japanese. (Bug#32785)

  • When the locale was set to Japanese, the date picker still had English month titles. (Bug#32741)

  • Flashing display of a pop-up used while saving outgoing email settings was caused by problematic initial placement calculations. (Bug#32579)

  • AIX 5.2 Agent did not work on AIX 5.3. (Bug#32414)

  • When the First Time Setup program was run it did not prompt the user to allow importing an Advisor bundle. (Bug#32199)

  • Agent on MacOSX did not read IP addresses for network interfaces correctly, so the monitor displayed empty host IP addresses. (Bug#32188)

  • HTML code in queries was not escaped when reporting replication errors, causing the code to be rendered into the page. (Bug#32186)

  • The First Run pop-up defaulted to English rather than to the locale set in the browser. (Bug#32129)

  • The error dialog box flashed in the upper left corner before being positioned in the center of the screen. This error dialog box now opens in the center of the screen. (Bug#32068)

  • The Events list did not take into account Daylight Time and Standard Time when listing events that happened during 1:00am-1:59am. An event that occurred at 1:10am Standard Time was listed before an event that occurred 50 minutes before it at 1:20am Daylight Time. (Bug#32016)

  • The pop-up for editing log levels failed to load due to bad instantiation data. (Bug#32013)

  • During the repeated hour of Daylight Savings Time (when 2am turns back into 1am), the graphs were not drawing data. Instead, there was a straight line from the point at 1:00 to the second 1:00, which is what happens if there is no data. The repository did, however, have data for this hour. (Bug#31997)

  • Only US English was supported for a locale setting. Other English variants are now available for the locale setting on the General Settings or the User Preferences pages. (Bug#31801)

  • If the user locale was changed the graph cache would continue to display the graph in the last locale until it timed out. (Bug#31680)

  • No init script was installed for the MySQL Network Monitoring Service Manager, and so it did not restart automatically on reboot. (Bug#31676)

  • The graph's displayed time was not the local time of the Dashboard corresponding to the requested time on the monitored server. (Bug#31656)

  • Saving a rule with a name that already existed resulted in a stack trace in the window, instead of a more user-friendly error message. (Bug#30925)

  • The network.mysql.com error messages were remapped thereby causing confusion. For example, the following error message:

    E9000: MySQL Enterprise Customer Center is having difficulties fetching your contract information. Please contact enterprise-feedback@mysql.com for assistance.

    Was remapped to:

    Unable to connect to verify credentials (Bug#30873)

  • A newly added server showed as “down” in the user interface, and could potentially have sent a false alarm notification. (Bug#30735)

  • The information on the Advisors, Check For Updates page did not accurately reflect how many rules and graphs were actually in the database and available to the user. (Bug#29623)

  • The agent did not process SIGHUP. (Bug#29380)

  • Monitor did not have a facility to stop or downgrade an agent collection frequency. (Bug#28589)

  • After an agent installation was updated from 1.0.1.4391 to 1.1.0.4899, the version in the Add/Remove Programs menu was incorrectly displayed as 1.0.1.4391, even though the update was successful and the file version of agent.exe was correctly displayed as 1.1.0.4899. (Bug#27447)

  • When viewing the Results of an Event in the Events tab of the Dashboard, the Notifications section did not reflect the Notifications settings at the time the Event was triggered, but rather the Notifications settings at the time the Event Results were viewed. (Bug#26349)

  • When the Service Agent was remotely monitoring a MySQL server it incorrectly reported that it could collect operating system information. (Bug#22497)

  • The Account Without Password advisor did not report all users who were without a password, it only reported one. (Bug#15165)

C.3. MySQL Connector/ODBC (MyODBC) Change History

C.3.1. Changes in MySQL Connector/ODBC 5.1.6 (Not yet released)
C.3.2. Changes in MySQL Connector/ODBC 5.1.5 (18 August 2008)
C.3.3. Changes in MySQL Connector/ODBC 5.1.4 (15 April 2008)
C.3.4. Changes in MySQL Connector/ODBC 5.1.3 (26 March 2008)
C.3.5. Changes in MySQL Connector/ODBC 5.1.2 (13 February 2008)
C.3.6. Changes in MySQL Connector/ODBC 5.1.1 (13 December 2007)
C.3.7. Changes in MySQL Connector/ODBC 5.1.0 (10 September 2007)
C.3.8. Changes in MySQL Connector/ODBC 5.0.12 (Never released)
C.3.9. Changes in MySQL Connector/ODBC 5.0.11 (31 January 2007)
C.3.10. Changes in MySQL Connector/ODBC 5.0.10 (14 December 2006)
C.3.11. Changes in MySQL Connector/ODBC 5.0.9 (22 November 2006)
C.3.12. Changes in MySQL Connector/ODBC 5.0.8 (17 November 2006)
C.3.13. Changes in MySQL Connector/ODBC 5.0.7 (08 November 2006)
C.3.14. Changes in MySQL Connector/ODBC 5.0.6 (03 November 2006)
C.3.15. Changes in MySQL Connector/ODBC 5.0.5 (17 October 2006)
C.3.16. Changes in Connector/ODBC 5.0.3 (Connector/ODBC 5.0 Alpha 3) (20 June 2006)
C.3.17. Changes in Connector/ODBC 5.0.2 (Never released)
C.3.18. Changes in Connector/ODBC 5.0.1 (Connector/ODBC 5.0 Alpha 2) (05 June 2006)
C.3.19. Changes in MySQL Connector/ODBC 3.51.27 (20 November 2008)
C.3.20. Changes in MySQL Connector/ODBC 3.51.26 (07 July 2008)
C.3.21. Changes in MySQL Connector/ODBC 3.51.25 (11 April 2008)
C.3.22. Changes in MySQL Connector/ODBC 3.51.24 (14 March 2008)
C.3.23. Changes in MySQL Connector/ODBC 3.51.23 (09 January 2008)
C.3.24. Changes in MySQL Connector/ODBC 3.51.22 (13 November 2007)
C.3.25. Changes in MySQL Connector/ODBC 3.51.21 (08 October 2007)
C.3.26. Changes in MySQL Connector/ODBC 3.51.20 (10 September 2007)
C.3.27. Changes in MySQL Connector/ODBC 3.51.19 (10 August 2007)
C.3.28. Changes in MySQL Connector/ODBC 3.51.18 (08 August 2007)
C.3.29. Changes in MySQL Connector/ODBC 3.51.17 (14 July 2007)
C.3.30. Changes in MySQL Connector/ODBC 3.51.16 (14 June 2007)
C.3.31. Changes in MySQL Connector/ODBC 3.51.15 (07 May 2007)
C.3.32. Changes in MySQL Connector/ODBC 3.51.14 (08 March 2007)
C.3.33. Changes in MySQL Connector/ODBC 3.51.13 (Never released)
C.3.34. Changes in MySQL Connector/ODBC 3.51.12 (11 February 2005)
C.3.35. Changes in MySQL Connector/ODBC 3.51.11 (28 January 2005)

C.3.1. Changes in MySQL Connector/ODBC 5.1.6 (Not yet released)

Bugs fixed:

  • Connector/ODBC failed to build with MySQL 5.1.30 due to incorrect use of the data type bool. (Bug#42120)

  • Calling SQLDescribeCol() with a NULL buffer and nonzero buffer length caused a crash. (Bug#41942)

  • MySQL Connector/ODBC updated some fields with random values, rather than with NULL. (Bug#41256)

  • Calling SQLDriverConnect() with a NULL pointer for the output buffer caused a crash if SQL_DRIVER_NOPROMPT was also specified:

    SQLDriverConnect(dbc, NULL, "DSN=myodbc5", SQL_NTS, NULL, 0, NULL, SQL_DRIVER_NOPROMPT)
    

    (Bug#40316)

  • Setting the ADO Recordset decimal field value to 44.56 resulted in an incorrect value of 445600.0000 being stored when the record set was updated with the Update method. (Bug#39961)

  • The SQLTablesW API gave incorrect results. For example, table name and table type were returned as NULL rather than as the correct values. (Bug#39957)

  • MyODBC would crash when a character set was being used on the server that was not supported in the client, for example cp1251:

    [MySQL][ODBC 5.1 Driver][mysqld-5.0.27-community-nt]Restricted data type attribute violation
    

    The fix causes MyODBC to return an error message instead of crashing. (Bug#39831)

  • When the SQLTables method was called with NULL passed as the tablename parameter, only one row in the resultset, with table name of NULL was returned, instead of all tables for the given database. (Bug#39561)

  • The SQLGetInfo() function returned 0 for SQL_CATALOG_USAGE information. (Bug#39560)

  • MyODBC Driver 5.1.5 was not able to connect if the connection string parameters contained spaces or tab symbols. For example, if the SERVER parameter was specified as “SERVER= localhost” instead of “SERVER=localhost” the following error message will be displayed:

    [MySQL][ODBC 5.1 Driver] Unknown MySQL server host ' localhost' (11001).
    

    (Bug#39085)

  • The pointer passed to the SQLDriverConnect method to retrieve the output connection string length was one greater than it should have been due to the inclusion of the NULL terminator. (Bug#38949)

  • Data-at-execution parameters were not supported during positioned update. This meant updating a long text field with a cursor update would erroneously set the value to null. This would lead to the error Column 'column_name' cannot be null while updating the database, even when column_name had been assigned a valid nonnull string. (Bug#37649)

  • The SQLDriverConnect method truncated the OutputConnectionString parameter to 52 characters. (Bug#37278)

  • The connection string option Enable Auto-reconnect did not work. When the connection failed, it could not be restored, and the errors generated were the same as if the option had not been selected. (Bug#37179)

  • Insertion of data into a LONGTEXT table field did not work. If such an attempt was made the corresponding field would be found to be empty on examination, or contain random characters. (Bug#36071)

  • No result record was returned for SQLGetTypeInfo for the TIMESTAMP data type. An application would receive the result return code 100 (SQL_NO_DATA_FOUND). (Bug#30626)

  • It was not possible to use Connector/ODBC to connect to a server using SSL. The following error was generated:

    Runtime error '-2147467259 (80004005)':
    
    [MySQL][ODBC 3.51 Driver]SSL connection error.
    

    (Bug#29955)

  • When the recordSet.Update function was called to update an adLongVarChar field, the field was updated but the recordset was immediately lost. This happened with driver cursors, whether the cursor was opened in optimistic or pessimistic mode.

    When the next update was called the test code would exit with the following error:

    -2147467259 : Query-based update failed because the row to update could not be found.
    

    (Bug#26950)

C.3.2. Changes in MySQL Connector/ODBC 5.1.5 (18 August 2008)

Bugs fixed:

  • ODBC TIMESTAMP string format is not handled properly by the MyODBC driver. When passing a TIMESTAMP or DATE to MyODBC, in the ODBC format: {d <date>} or {ts <timestamp>}, the string that represents this is copied once into the SQL statement, and then added again, as an escaped string. (Bug#37342)

  • The connector failed to prompt for additional information required to create a DSN-less connection from an application such as Microsoft Excel. (Bug#37254)

  • SQLDriverConnect does not return SQL_NO_DATA on cancel. The ODBC documentation specifies that this method should return SQL_NO_DATA when the user cancels the dialog to connect. The connector, however, returns SQL_ERROR. (Bug#36293)

  • Assigning a string longer than 67 characters to the TableType parameter resulted in a buffer overrun when the SQLTables() function was called. (Bug#36275)

  • The ODBC connector randomly uses logon information stored in odbc-profile, or prompts the user for connection information and ignores any settings stored in odbc-profile. (Bug#36203)

  • After having successfully established a connection, a crash occurs when calling SQLProcedures() followed by SQLFreeStmt(), using the ODBC C API. (Bug#36069)

C.3.3. Changes in MySQL Connector/ODBC 5.1.4 (15 April 2008)

Bugs fixed:

  • Wrong result obtained when using sum() on a decimal(8,2) field type. (Bug#35920)

  • The driver installer could not create a new DSN if many other drivers were already installed. (Bug#35776)

  • The SQLColAttribute() function returned SQL_TRUE when querying the SQL_DESC_FIXED_PREC_SCALE (SQL_COLUMN_MONEY) attribute of a DECIMAL column. Previously, the correct value of SQL_FALSE was returned; this is now again the case. (Bug#35581)

  • On Linux, SQLGetDiagRec() returned SQL_SUCCESS in cases when it should have returned SQL_NO_DATA. (Bug#33910)

  • The driver crashes ODBC Administrator on attempting to add a new DSN. (Bug#32057)

C.3.4. Changes in MySQL Connector/ODBC 5.1.3 (26 March 2008)

Platform specific notes:

  • Important Change: You must uninstall previous 5.1.x editions of Connector/ODBC before installing the new version.

  • The HP-UX 11.23 IA64 binary package does not include the GUI bits because of problems building Qt on that platform.

  • There is no binary package for Mac OS X on 64-bit PowerPC because Apple does not currently provide a 64-bit PowerPC version of iODBC.

  • The installer for 64-bit Windows installs both the 32-bit and 64-bit driver. Please note that Microsoft does not yet supply a 64-bit bridge from ADO to ODBC.

Bugs fixed:

  • Important Change: In previous versions, the SSL certificate would automatically be verified when used as part of the Connector/ODBC connection. The default mode is now to ignore the verificate of certificates. To enforce verification of the SSL certificate during connection, use the SSLVERIFY DSN parameter, setting the value to 1. (Bug#29955, Bug#34648)

  • Inserting characters to a UTF8 table using surrogate pairs would fail and insert invalid data. (Bug#34672)

  • Installation of Connector/ODBC would fail because it was unable to uninstall a previous installed version. The file being requested would match an older release version than any installed version of the connector. (Bug#34522)

  • Using SqlGetData in combination with SQL_C_WCHAR would return overlapping data. (Bug#34429)

  • Descriptor records were not cleared correctly when calling SQLFreeStmt(SQL_UNBIND). (Bug#34271)

  • The dropdown selection for databases on a server when creating a DSN was too small. The list size now automatically adjusts up to a maximum size of 20 potential databases. (Bug#33918)

  • Microsoft Access would be unable to use DBEngine.RegisterDatabase to create a DSN using the Connector/ODBC driver. (Bug#33825)

  • Connector/ODBC erroneously reported that it supported the CAST() and CONVERT() ODBC functions for parsing values in SQL statements, which could lead to bad SQL generation during a query. (Bug#33808)

  • Using a linked table in Access 2003 where the table has a BIGINT column as the first column in the table, and is configured as the primary key, shows #DELETED for all rows of the table. (Bug#24535)

  • Updating a RecordSet when the query involves a BLOB field would fail. (Bug#19065)

C.3.5. Changes in MySQL Connector/ODBC 5.1.2 (13 February 2008)

MySQL Connector/ODBC 5.1.2-beta, a new version of the ODBC driver for the MySQL database management system, has been released. This release is the second beta (feature-complete) release of the new 5.1 series and is suitable for use with any MySQL server version since MySQL 4.1, including MySQL 5.0, 5.1, and 6.0. (It will not work with 4.0 or earlier releases.)

Keep in mind that this is a beta release, and as with any other pre-production release, caution should be taken when installing on production level systems or systems with critical data.

Platform specific notes:

  • The HP-UX 11.23 IA64 binary package does not include the GUI bits because of problems building Qt on that platform.

  • There is no binary package for Mac OS X on 64-bit PowerPC because Apple does not currently provide a 64-bit PowerPC version of iODBC.

  • The installer for 64-bit Windows installs both the 32-bit and 64-bit driver. Please note that Microsoft does not yet supply a 64-bit bridge from ADO to ODBC.

  • Due to differences with the installation process used on Windows and potential registry corruption, it is recommended that uninstall any existing versions of Connector/ODBC 5.1.x before upgrading.

    See also Bug#34571.

Functionality added or changed:

  • Explicit descriptors are implemented. (Bug#32064)

  • A full implementation of SQLForeignKeys based on the information available from INFORMATION_SCHEMA in 5.0 and later versions of the server has been implemented.

  • Changed SQL_ATTR_PARAMSET_SIZE to return an error until support for it is implemented.

  • Disabled MYSQL_OPT_SSL_VERIFY_SERVER_CERT when using an SSL connection.

  • SQLForeignKeys uses INFORMATION_SCHEMA when it is available on the server, which allows more complete information to be returned.

Bugs fixed:

  • The SSLCIPHER option would be incorrectly recorded within the SSL configuration on Windows. (Bug#33897)

  • Within the GUI interface, when connecting to a MySQL server on a nonstandard port, the connection test within the GUI would fail. The issue was related to incorrect parsing of numeric values within the DSN when the option was not configured as the last parameter within the DSN. (Bug#33822)

  • Specifying a nonexistent database name within the GUI dialog would result in an empty list, not an error. (Bug#33615)

  • When deleting rows from a static cursor, the cursor position would be incorrectly reported. (Bug#33388)

  • SQLGetInfo() reported characters for SQL_SPECIAL_CHARACTERS that were not encoded correctly. (Bug#33130)

  • Retrieving data from a BLOB column would fail within SQLGetDatawhen the target data type was SQL_C_WCHAR due to incorrect handling of the character buffer. (Bug#32684)

  • Renaming an existing DSN entry would create a new entry with the new name without deleting the old entry. (Bug#31165)

  • Reading a TEXT column that had been used to store UTF8 data would result in the wrong information being returned during a query. (Bug#28617)

  • SQLForeignKeys would return an empty string for the schema columns instead of NULL. (Bug#19923)

  • When accessing column data, FLAG_COLUMN_SIZE_S32 did not limit the octet length or display size reported for fields, causing problems with Microsoft Visual FoxPro.

    The list of ODBC functions that could have caused failures in Microsoft software when retrieving the length of LONGBLOB or LONGTEXT columns includes:

    • SQLColumns

    • SQLColAttribute

    • SQLColAttributes

    • SQLDescribeCol

    • SQLSpecialColumns (theoretically can have the same problem)

    (Bug#12805, Bug#30890)

  • Dynamic cursors on statements with parameters were not supported. (Bug#11846)

  • Evaluating a simple numeric expression when using the OLEDB for ODBC provider and ADO would return an error, instead of the result. (Bug#10128)

  • Adding or updating a row using SQLSetPos() on a result set with aliased columns would fail. (Bug#6157)

C.3.6. Changes in MySQL Connector/ODBC 5.1.1 (13 December 2007)

MySQL Connector/ODBC 5.1.1-beta, a new version of the ODBC driver for the MySQL database management system, has been released. This release is the first beta (feature-complete) release of the new 5.1 series and is suitable for use with any MySQL server version since MySQL 4.1, including MySQL 5.0, 5.1, and 6.0. (It will not work with 4.0 or earlier releases.)

Keep in mind that this is a beta release, and as with any other pre-production release, caution should be taken when installing on production level systems or systems with critical data.

Includes changes from Connector/ODBC 3.51.21 and 3.51.22.

Built using MySQL 5.0.52.

Platform specific notes:

  • The HP-UX 11.23 IA64 binary package does not include the GUI bits because of problems building Qt on that platform.

  • There is no binary package for Mac OS X on 64-bit PowerPC because Apple does not currently provide a 64-bit PowerPC version of iODBC.

  • The installer for 64-bit Windows installs both the 32-bit and 64-bit driver. Please note that Microsoft does not yet supply a 64-bit bridge from ADO to ODBC.

  • Due to differences with the installation process used on Windows and potential registry corruption, it is recommended that uninstall any existing versions of Connector/ODBC 5.1.x before upgrading.

    See also Bug#34571.

Functionality added or changed:

  • Incompatible Change: Replaced myodbc3i (now myodbc-installer) with Connector/ODBC 5.0 version.

  • Incompatible Change: Removed monitor (myodbc3m) and dsn-editor (myodbc3c).

  • Incompatible Change: Disallow SET NAMES in initial statement and in executed statements.

  • A wrapper for the SQLGetPrivateProfileStringW() function, which is required for Unicode support, has been created. This function is missing from the unixODBC driver manager. (Bug#32685)

  • Added MSI installer for Windows 64-bit. (Bug#31510)

  • Implemented support for SQLCancel(). (Bug#15601)

  • Added support for SQL_NUMERIC_STRUCT. (Bug#3028, Bug#24920)

  • Removed nonthreadsafe configuration of the driver. The driver is now always built against the threadsafe version of libmysql.

  • Implemented native Windows setup library

  • Replaced the internal library which handles creation and loading of DSN information. The new library, which was originally a part of Connector/ODBC 5.0, supports Unicode option values.

  • The Windows installer now places files in a subdirectory of the Program Files directory instead of the Windows system directory.

Bugs fixed:

  • The SET NAMES statement has been disabled because it causes problems in the ODBC driver when determining the current client character set. (Bug#32596)

  • SQLDescribeColW returned UTF-8 column as SQL_VARCHAR instead of SQL_WVARCHAR. (Bug#32161)

  • ADO was unable to open record set using dynamic cursor. (Bug#32014)

  • ADO applications would not open a RecordSet that contained a DECIMAL field. (Bug#31720)

  • Memory usage would increase considerably. (Bug#31115)

  • SQL statements are limited to 64KB. (Bug#30983, Bug#30984)

  • SQLSetPos with SQL_DELETE advances dynamic cursor incorrectly. (Bug#29765)

  • Using an ODBC prepared statement with bound columns would produce an empty result set when called immediately after inserting a row into a table. (Bug#29239)

  • ADO Not possible to update a client side cursor. (Bug#27961)

  • Recordset Update() fails when using adUseClient cursor. (Bug#26985)

  • Connector/ODBC would fail to connect to the server if the password contained certain characters, including the semicolon and other punctuation marks. (Bug#16178)

  • Fixed SQL_ATTR_PARAM_BIND_OFFSET, and fixed row offsets to work with updatable cursors.

  • SQLSetConnectAttr() did not clear previous errors, possibly confusing SQLError().

  • SQLError() incorrectly cleared the error information, making it unavailable from subsequent calls to SQLGetDiagRec().

  • NULL pointers passed to SQLGetInfo() could result in a crash.

  • SQL_ODBC_SQL_CONFORMANCE was not handled by SQLGetInfo().

  • SQLCopyDesc() did not correctly copy all records.

  • Diagnostics were not correctly cleared on connection and environment handles.

C.3.7. Changes in MySQL Connector/ODBC 5.1.0 (10 September 2007)

This release is the first of the new 5.1 series and is suitable for use with any MySQL server version since MySQL 4.1, including MySQL 5.0, 5.1, and 6.0. (It will not work with 4.0 or earlier releases.)

Keep in mind that this is a alpha release, and as with any other pre-production release, caution should be taken when installing on production level systems or systems with critical data. Not all of the features planned for the final Connector/ODBC 5.1 release are implemented.

Functionality is based on Connector/ODBC 3.51.20.

Platform specific notes:

  • The HP-UX 11.23 IA64 binary package does not include the GUI bits because of problems building Qt on that platform.

  • There is no binary package for Mac OS X on 64-bit PowerPC because Apple does not currently provide a 64-bit PowerPC version of iODBC.

  • There are no installer packages for Microsoft Windows x64 Edition.

  • Due to differences with the installation process used on Windows and potential registry corruption, it is recommended that uninstall any existing versions of Connector/ODBC 5.1.x before upgrading.

    See also Bug#34571.

Functionality added or changed:

  • Added support for Unicode functions (SQLConnectW, etc).

  • Added descriptor support (SQLGetDescField, SQLGetDescRec, etc).

  • Added support for SQL_C_WCHAR.

C.3.8. Changes in MySQL Connector/ODBC 5.0.12 (Never released)

Note

Development on Connector/ODBC 5.0.x has ceased. New features and functionality will be incorporated into Connector/ODBC 5.1. See Section 20.1.2.1, “Connector/ODBC Roadmap”.

Bugs fixed:

  • Inserting NULL values into a DATETIME column from Access reports an error. (Bug#27896)

  • Tables with TEXT columns would be incorrectly identified, returning an Unknown SQL type - 65535 error. (Bug#20127)

C.3.9. Changes in MySQL Connector/ODBC 5.0.11 (31 January 2007)

Functionality added or changed:

  • Added support for ODBC v2 statement options using attributes.

  • Driver now builds and is partially tested under Linux with the iODBC driver manager.

Bugs fixed:

  • Connection string parsing for DSN-less connections could fail to identify some parameters. (Bug#25316)

  • Updates of MEMO or TEXT columns from within Microsoft Access would fail. (Bug#25263)

  • Transaction support has been added and tested. (Bug#25045)

  • Internal function, my_setpos_delete_ignore() could cause a crash. (Bug#22796)

  • Fixed occasional mis-handling of the SQL_NUMERIC_C type.

  • Fixed the binding of certain integer types.

C.3.10. Changes in MySQL Connector/ODBC 5.0.10 (14 December 2006)

Connector/ODBC 5.0.10 is the sixth BETA release.

Functionality added or changed:

  • Significant performance improvement when retrieving large text fields in pieces using SQLGetData() with a buffer smaller than the whole data. Mainly used in Access when fetching very large text fields. (Bug#24876)

  • Added initial unicode support in data and metadata. (Bug#24837)

  • Added initial support for removing braces when calling stored procedures and retrieving result sets from procedure calls. (Bug#24485)

  • Added loose handling of retrieving some diagnostic data. (Bug#15782)

  • Added wide-string type info for SQLGetTypeInfo().

Bugs fixed:

  • Editing DSN no longer crashes ODBC data source administrator. (Bug#24675)

  • String query parameters are new escaped correctly. (Bug#19078)

C.3.11. Changes in MySQL Connector/ODBC 5.0.9 (22 November 2006)

Connector/ODBC 5.0.9 is the fifth BETA release.

This is an implementation and testing release, and is not designed for use within a production environment.

Functionality added or changed:

  • Added support for column binding as SQL_NUMBERIC_STRUCT.

  • Added recognition of SQL_C_SHORT and SQL_C_TINYINT as C types.

Bugs fixed:

  • Fixed wildcard handling of and listing of catalogs and tables in SQLTables.

  • Added limit of display size when requested via SQLColAttribute/SQL_DESC_DISPLAY_SIZE.

  • Fixed buffer length return for SQLDriverConnect.

  • ODBC v2 behaviour in driver now supports ODBC v3 date/time types (since DriverManager maps them).

  • Catch use of SQL_ATTR_PARAMSET_SIZE and report error until we fully support.

  • Fixed statistics to fail if it couldn't be completed.

  • Corrected retrieval multiple field types bit and blob/text.

  • Fixed SQLGetData to clear the NULL indicator correctly during multiple calls.

C.3.12. Changes in MySQL Connector/ODBC 5.0.8 (17 November 2006)

Connector/ODBC 5.0.8 is the fourth BETA release.

This is an implementation and testing release, and is not designed for use within a production environment.

Functionality added or changed:

  • Also made SQL_DESC_NAME only fill in the name if there was a data pointer given, otherwise just the length.

  • Fixed display size to be length if max length isn’t available.

  • Made distinction between CHAR/BINARY (and VAR versions).

  • Wildcards now support escaped chars and underscore matching (needed to link tables with underscores in access).

Bugs fixed:

  • Fixed binding using SQL_C_LONG.

  • Fixed using wrong pointer for SQL_MAX_DRIVER_CONNECTIONS in SQLGetInfo.

  • Set default return to SQL_SUCCESS if nothing is done for SQLSpecialColumns.

  • Fixed MDiagnostic to use correct v2/v3 error codes.

  • Allow SQLDescribeCol to be called to retrieve the length of the column name, but not the name itself.

  • Length now used when handling bind parameter (needed in particular for SQL_WCHAR) - this enables updating char data in MS Access.

  • Updated retrieval of descriptor fields to use the right pointer types.

  • Fixed hanlding of numeric pointers in SQLColAttribute.

  • Fixed type returned for MYSQL_TYPE_LONG to SQL_INTEGER instead of SQL_TINYINT.

  • Fix size return from SQLDescribeCol.

  • Fixed string length to chars, not bytes, returned by SQLGetDiagRec.

C.3.13. Changes in MySQL Connector/ODBC 5.0.7 (08 November 2006)

Connector/ODBC 5.0.7 is the third BETA release.

This is an implementation and testing release, and is not designed for use within a production environment.

Functionality added or changed:

  • Added support for SQLStatistics to MYODBCShell.

  • Improved trace/log.

Bugs fixed:

  • SQLBindParameter now handles SQL_C_DEFAULT.

  • Corrected incorrect column index within SQLStatistics. Many more tables can now be linked into MS Access.

  • Fixed SQLDescribeCol returning column name length in bytes rather than chars.

C.3.14. Changes in MySQL Connector/ODBC 5.0.6 (03 November 2006)

Connector/ODBC 5.0.6 is the second BETA release.

This is an implementation and testing release, and is not designed for use within a production environment.

Features, limitations and notes on this release

  • Connector/ODBC supports both User and System DSNs.

  • Installation is provided in the form of a standard Microsoft System Installer (MSI).

  • You no longer have to have Connector/ODBC 3.51 installed before installing this version.

Bugs fixed:

  • You no longer have to have Connector/ODBC 3.51 installed before installing this version.

  • Connector/ODBC supports both User and System DSNs.

  • Installation is provided in the form of a standard Microsoft System Installer (MSI).

C.3.15. Changes in MySQL Connector/ODBC 5.0.5 (17 October 2006)

Connector/ODBC 5.0.5 is the first BETA release.

This is an implementation and testing release, and is not designed for use within a production environment.

You no longer have to have Connector/ODBC 3.51 installed before installing this version.

Bugs fixed:

  • You no longer have to have Connector/ODBC 3.51 installed before installing this version.

C.3.16. Changes in Connector/ODBC 5.0.3 (Connector/ODBC 5.0 Alpha 3) (20 June 2006)

This is an implementation and testing release, and is not designed for use within a production environment.

Features, limitations and notes on this release:

  • The following ODBC API functions have been added in this release:

    • SQLBindParameter

    • SQLBindCol

C.3.17. Changes in Connector/ODBC 5.0.2 (Never released)

Connector/ODBC 5.0.2 was an internal implementation and testing release.

C.3.18. Changes in Connector/ODBC 5.0.1 (Connector/ODBC 5.0 Alpha 2) (05 June 2006)

Features, limitations and notes on this release:

  • Connector/ODBC 5.0 is Unicode aware.

  • Connector/ODBC is currently limited to basic applications. ADO applications and Microsoft Office are not supported.

  • Connector/ODBC must be used with a Driver Manager.

  • The following ODBC API functions are implemented:

    • SQLAllocHandle

    • SQLCloseCursor

    • SQLColAttribute

    • SQLColumns

    • SQLConnect

    • SQLCopyDesc

    • SQLDisconnect

    • SQLExecDirect

    • SQLExecute

    • SQLFetch

    • SQLFreeHandle

    • SQLFreeStmt

    • SQLGetConnectAttr

    • SQLGetData

    • SQLGetDescField

    • SQLGetDescRec

    • SQLGetDiagField

    • SQLGetDiagRec

    • SQLGetEnvAttr

    • SQLGetFunctions

    • SQLGetStmtAttr

    • SQLGetTypeInfo

    • SQLNumResultCols

    • SQLPrepare

    • SQLRowcount

    • SQLTables

    The following ODBC API function are implemented, but not yet support all the available attributes/options:

    • SQLSetConnectAttr

    • SQLSetDescField

    • SQLSetDescRec

    • SQLSetEnvAttr

    • SQLSetStmtAttr

C.3.19. Changes in MySQL Connector/ODBC 3.51.27 (20 November 2008)

Bugs fixed:

  • The client program hung when the network connection to the server was interrupted. (Bug#40407)

  • The connection string option Enable Auto-reconnect did not work. When the connection failed, it could not be restored, and the errors generated were the same as if the option had not been selected. (Bug#37179)

  • It was not possible to use Connector/ODBC to connect to a server using SSL. The following error was generated:

    Runtime error '-2147467259 (80004005)':
    
    [MySQL][ODBC 3.51 Driver]SSL connection error.
    

    (Bug#29955)

C.3.20. Changes in MySQL Connector/ODBC 3.51.26 (07 July 2008)

Functionality added or changed:

  • There is a new connection option, FLAG_NO_BINARY_RESULT. When set this option disables charset 63 for columns with an empty org_table. (Bug#29402)

Bugs fixed:

  • When an ADOConnection is created and attempts to open a schema with ADOConnection.OpenSchema an access violation occurs in myodbc3.dll. (Bug#30770)

  • When SHOW CREATE TABLE was invoked and then the field values read, the result was truncated and unusable if the table had many rows and indexes. (Bug#24131)

C.3.21. Changes in MySQL Connector/ODBC 3.51.25 (11 April 2008)

Bugs fixed:

  • The SQLColAttribute() function returned SQL_TRUE when querying the SQL_DESC_FIXED_PREC_SCALE (SQL_COLUMN_MONEY) attribute of a DECIMAL column. Previously, the correct value of SQL_FALSE was returned; this is now again the case. (Bug#35581)

  • The driver crashes ODBC Administrator on attempting to add a new DSN. (Bug#32057)

  • When accessing column data, FLAG_COLUMN_SIZE_S32 did not limit the octet length or display size reported for fields, causing problems with Microsoft Visual FoxPro.

    The list of ODBC functions that could have caused failures in Microsoft software when retrieving the length of LONGBLOB or LONGTEXT columns includes:

    • SQLColumns

    • SQLColAttribute

    • SQLColAttributes

    • SQLDescribeCol

    • SQLSpecialColumns (theoretically can have the same problem)

    (Bug#12805, Bug#30890)

C.3.22. Changes in MySQL Connector/ODBC 3.51.24 (14 March 2008)

Bugs fixed:

  • Security Enhancement: Accessing a parameer with the type of SQL_C_CHAR, but with a numeric type and a length of zero, the parameter marker would get stropped from the query. In addition, an SQL injection was possible if the parameter value had a nonzero length and was not numeric, the text would be inserted verbatim. (Bug#34575)

  • Important Change: In previous versions, the SSL certificate would automatically be verified when used as part of the Connector/ODBC connection. The default mode is now to ignore the verificate of certificates. To enforce verification of the SSL certificate during connection, use the SSLVERIFY DSN parameter, setting the value to 1. (Bug#29955, Bug#34648)

  • When using ADO, the count of parameters in a query would always return zero. (Bug#33298)

  • Using tables with a single quote or other nonstandard characters in the table or column names through ODBC would fail. (Bug#32989)

  • When using Crystal Reports, table and column names would be truncated to 21 characters, and truncated columns in tables where the truncated name was the duplicated would lead to only a single column being displayed. (Bug#32864)

  • SQLExtendedFetch() and SQLFetchScroll() ignored the rowset size if the Don't cache result DSN option was set. (Bug#32420)

  • When using the ODBC SQL_TXN_READ_COMMITTED option, 'dirty' records would be read from tables as if the option had not been applied. (Bug#31959)

  • When creating a System DSN using the ODBC Administrator on Mac OS X, a User DSN would be created instead. The root cause is a problem with the iODBC driver manager used on Mac OS X. The fix works around this issue.

    Note

    ODBC Administrator may still be unable to register a System DSN unless the /Library/ODBC/odbc.ini file has the correct permissions. You should ensure that the file is writable by the admin group.

    (Bug#31495)

  • Calling SQLFetch or SQLFetchScroll would return negative data lengths when using SQL_C_WCHAR. (Bug#31220)

  • SQLSetParam() caused memory allocation errors due to driver manager's mapping of deprecated functions (buffer length -1). (Bug#29871)

  • Static cursor was unable to be used through ADO when dynamic cursors were enabled. (Bug#27351)

  • Using connection.Execute to create a record set based on a table without declaring the cmd option as adCmdTable will fail when communicating with versions of MySQL 5.0.37 and higher. The issue is related to the way that SQLSTATE is returned when ADO tries to confirm the existence of the target object. (Bug#27158)

  • Updating a RecordSet when the query involves a BLOB field would fail. (Bug#19065)

  • With some connections to MySQL databases using Connector/ODBC, the connection would mistakenly report 'user cancelled' for accesses to the database information. (Bug#16653)

C.3.23. Changes in MySQL Connector/ODBC 3.51.23 (09 January 2008)

Platform specific notes:

  • The HP-UX 11.23 IA64 binary package does not include the GUI bits because of problems building Qt on that platform.

  • There is no binary package for Mac OS X on 64-bit PowerPC because Apple does not currently provide a 64-bit PowerPC version of iODBC.

  • There are no installer packages for Microsoft Windows x64 Edition.

Bugs fixed:

  • Connector/ODBC would incorrectly return SQL_SUCCESS when checking for distributed transaction support. (Bug#32727)

  • When using unixODBC or directly linked applications where the thread level is set to less than 3 (within odbcinst.ini), a thread synchronization issue would lead to an application crash. This was because SQLAllocStmt() and SQLFreeStmt() did not synchronize access to the list of statements associated with a connection. (Bug#32587)

  • Cleaning up environment handles in multithread environments could result in a five (or more) second delay. (Bug#32366)

  • Renaming an existing DSN entry would create a new entry with the new name without deleting the old entry. (Bug#31165)

  • Setting the default database using the DefaultDatabase property of an ADO Connection object would fail with the error Provider does not support this property. The SQLGetInfo() returned the wrong value for SQL_DATABASE_NAME when no database was selected. (Bug#3780)

C.3.24. Changes in MySQL Connector/ODBC 3.51.22 (13 November 2007)

Functionality added or changed:

  • The workaround for this bug was removed due to the fixes in MySQL Server 5.0.48 and 5.1.21.

    This regression was introduced by Bug#10491.

Bugs fixed:

  • The English locale would be used when formatting floating point values. The C locale is now used for these values. (Bug#32294)

  • When accessing information about supported operations, the driver would return incorrect information about the support for UNION. (Bug#32253)

  • Unsigned integer values greater than the maximum value of a signed integer would be handled incorrectly. (Bug#32171)

  • The wrong result was returned by SQLGetData() when the data was an empty string and a zero-sized buffer was specified. (Bug#30958)

  • Added the FLAG_COLUMN_SIZE_S32 option to limit the reported column size to a signed 32-bit integer. This option is automatically enabled for ADO applications to provide a work around for a bug in ADO. (Bug#13776)

C.3.25. Changes in MySQL Connector/ODBC 3.51.21 (08 October 2007)

Bugs fixed:

  • When using a rowset/cursor and add a new row with a number of fields, subsequent rows with fewer fields will include the original fields from the previous row in the final INSERT statement. (Bug#31246)

  • Uninitiated memory could be used when C/ODBC internally calls SQLGetFunctions(). (Bug#31055)

  • The wrong SQL_DESC_LITERAL_PREFIX would be returned for date/time types. (Bug#31009)

  • The wrong COLUMN_SIZE would be returned by SQLGetTypeInfo for the TIME columns (SQL_TYPE_TIME). (Bug#30939)

  • Clicking outside the character set selection box when configuring a new DSN could cause the wrong character set to be selected. (Bug#30568)

  • Not specifying a user in the DSN dialog would raise a warning even though the parameter is optional. (Bug#30499)

  • SQLSetParam() caused memory allocation errors due to driver manager's mapping of deprecated functions (buffer length -1). (Bug#29871)

  • When using ADO, a column marked as AUTO_INCREMENT could incorrectly report that the column allowed NULL values. This was dur to an issue with NULLABLE and IS_NULLABLE return values from the call to SQLColumns(). (Bug#26108)

  • Connector/ODBC would return the wrong the error code when the server disconnects the active connection because the configured wait_timeout has expired. Previously it would return HY000. Connector/ODBC now correctly returns an SQLSTATE of 08S01. (Bug#3456)

C.3.26. Changes in MySQL Connector/ODBC 3.51.20 (10 September 2007)

Bugs fixed:

  • Using FLAG_NO_PROMPT doesn't suppress the dialogs normally handled by SQLDriverConnect. (Bug#30840)

  • The specified length of the user name and authentication parameters to SQLConnect() were not being honored. (Bug#30774)

  • The wrong column size was returned for binary data. (Bug#30547)

  • SQLGetData() will now always return SQL_NO_DATA_FOUND on second call when no data left, even if requested size is 0. (Bug#30520)

  • SQLGetConnectAttr() did not reflect the connection state correctly. (Bug#14639)

  • Removed checkbox in setup dialog for FLAG_FIELD_LENGTH (identified as Don't Optimize Column Width within the GUI dialog), which was removed from the driver in 3.51.18.

C.3.27. Changes in MySQL Connector/ODBC 3.51.19 (10 August 2007)

Connector/ODBC 3.51.19 fixes a specific issue with the 3.51.18 release. For a list of changes in the 3.51.18 release, see Section C.3.28, “Changes in MySQL Connector/ODBC 3.51.18 (08 August 2007)”.

Functionality added or changed:

  • Because of Bug#10491 in the server, character string results were sometimes incorrectly identified as SQL_VARBINARY. Until this server bug is corrected, the driver will identify all variable-length strings as SQL_VARCHAR.

C.3.28. Changes in MySQL Connector/ODBC 3.51.18 (08 August 2007)

Platform specific notes:

  • The HP-UX 11.23 IA64 binary package does not include the GUI bits because of problems building Qt on that platform.

  • There is no binary package for Mac OS X on 64-bit PowerPC because Apple does not currently provide a 64-bit PowerPC version of iODBC.

  • Binary packages for Sun Solaris are now available as PKG packages.

  • Binary packages as disk images with installers are now available for Mac OS X.

  • A binary package without an installer is available for Microsoft Windows x64 Edition. There are no installer packages for Microsoft Windows x64 Edition.

Functionality added or changed:

  • Incompatible Change: The FLAG_DEBUG option was removed.

  • When connecting to a specific database when using a DSN, the system tables from the mysql database are no longer also available. Previously, tables from the mysql database (catalog) were listed as SYSTEM TABLES by SQLTables() even when a different catalog was being queried. (Bug#28662)

  • Installed for Mac OS X has been re-instated. The installer registers the driver at a system (not user) level and makes it possible to create both user and system DSNs using the Connector/ODBC driver. The installer also fixes the situation where the necessary drivers would bge installed local to the user, not globally. (Bug#15326, Bug#10444)

  • Connector/ODBC now supports batched statements. In order to enable cached statement support you must switch enable the batched statement option (FLAG_MULTI_STATEMENTS, 67108864, or Allow multiple statements within a GUI configuration). Be aware that batched statements create an increased chance of SQL injection attacks and you must ensure that your application protects against this scenario. (Bug#7445)

  • The SQL_ATTR_ROW_BIND_OFFSET_PTR is now supported for row bind offsets. (Bug#6741)

  • The TRACE and TRACEFILE DSN options have been removed. Use the ODBC driver manager trace options instead.

Bugs fixed:

  • When using a table with multiple TIMESTAMP columns, the final TIMESTAMP column within the table definition would not be updateable. Note that there is still a limitation in MySQL server regarding multiple TIMESTAMP columns . (Bug#9927) (Bug#30081)

  • Fixed an issue where the myodbc3i would update the user ODBC configuration file (~/Library/ODBC/odbcinst.ini) instead of the system /Library/ODBC/odbcinst.ini. This was caused because myodbc3i was not honoring the s and u modifiers for the -d command-line option. (Bug#29964)

  • Getting table metadata (through the SQLColumns() would fail, returning a bad table definition to calling applications. (Bug#29888)

  • DATETIME column types would return FALSE in place of SQL_SUCCESS when requesting the column type information. (Bug#28657)

  • The SQL_COLUMN_TYPE, SQL_COLUMN_DISPLAY and SQL_COLUMN_PRECISION values would be returned incorrectly by SQLColumns(), SQLDescribeCol() and SQLColAttribute() when accessing character columns, especially those generated through concat(). The lengths returned should now conform to the ODBC specification. The FLAG_FIELD_LENGTH option no longer has any affect on the results returned. (Bug#27862)

  • Obtaining the length of a column when using a character set for the connection of utf8 would result in the length being returned incorrectly. (Bug#19345)

  • The SQLColumns() function could return incorrect information about TIMESTAMP columns, indicating that the field was not nullable. (Bug#14414)

  • The SQLColumns() function could return incorrect information about AUTO_INCREMENT columns, indicating that the field was not nullable. (Bug#14407)

  • A binary package without an installer is available for Microsoft Windows x64 Edition. There are no installer packages for Microsoft Windows x64 Edition.

  • There is no binary package for Mac OS X on 64-bit PowerPC because Apple does not currently provide a 64-bit PowerPC version of iODBC.

  • BIT(n) columns are now treated as SQL_BIT data where n = 1 and binary data where n > 1.

  • The wrong value from SQL_DESC_LITERAL_SUFFIX was returned for binary fields.

  • The SQL_DATETIME_SUB column in SQLColumns() was not correctly set for date and time types.

  • The value for SQL_DESC_FIXED_PREC_SCALE was not returned correctly for values in MySQL 5.0 and later.

  • The wrong value for SQL_DESC_TYPE was returned for date and time types.

  • SQLConnect() and SQLDriverConnect() were rewritten to eliminate duplicate code and ensure all options were supported using both connection methods. SQLDriverConnect() now only requires the setup library to be present when the call requires it.

  • The HP-UX 11.23 IA64 binary package does not include the GUI bits because of problems building Qt on that platform.

  • Binary packages as disk images with installers are now available for Mac OS X.

  • Binary packages for Sun Solaris are now available as PKG packages.

  • The wrong value for DECIMAL_DIGITS in SQLColumns() was reported for FLOAT and DOUBLE fields, as well as the wrong value for the scale parameter to SQLDescribeCol(), and the SQL_DESC_SCALE attribute from SQLColAttribute().

  • The SQL_DATA_TYPE column in SQLColumns() results did not report the correct value for date and time types.

C.3.29. Changes in MySQL Connector/ODBC 3.51.17 (14 July 2007)

Platform specific notes:

  • The HP-UX 11.23 IA64 binary package does not include the GUI bits because of problems building Qt on that platform.

  • There is no binary package for Mac OS X on 64-bit PowerPC because Apple does not currently provide a 64-bit PowerPC version of iODBC.

  • Binary packages for Sun Solaris are now available as PKG packages.

  • Binary packages as disk images with installers are now available for Mac OS X.

  • A binary package without an installer is available for Microsoft Windows x64 Edition. There are no installer packages for Microsoft Windows x64 Edition.

Functionality added or changed:

  • It is now possible to specify a different character set as part of the DSN or connection string. This must be used instead of the SET NAMES statement. You can also configure the character set value from the GUI configuration. (Bug#9498, Bug#6667)

  • Fixed calling convention ptr and wrong free in myodbc3i, and fixed the null terminating (was only one, not two) when writing DSN to string.

  • Dis-allow NULL ptr for null indicator when calling SQLGetData() if value is null. Now returns SQL_ERROR w/state 22002.

  • The setup library has been split into its own RPM package, to allow installing the driver itself with no GUI dependencies.

Bugs fixed:

  • myodbc3i did not correctly format driver info, which could cause the installation to fail. (Bug#29709)

  • Connector/ODBC crashed with Crystal Reports due to a rproblem with SQLProcedures(). (Bug#28316)

  • Fixed a problem where the GUI would crash when configuring or removing a System or User DSN. (Bug#27315)

  • Fixed error handling of out-of-memory and bad connections in catalog functions. This might raise errors in code paths that had ignored them in the past. (Bug#26934)

  • For a stored procedure that returns multiple result sets, Connector/ODBC returned only the first result set. (Bug#16817)

  • Calling SQLGetDiagField with RecNumber 0, DiagIdentifier NOT 0 returned SQL_ERROR, preventing access to diagnostic header fields. (Bug#16224)

  • Added a new DSN option (FLAG_ZERO_DATE_TO_MIN) to retrieve XXXX-00-00 dates as the minimum allowed ODBC date (XXXX-01-01). Added another option (FLAG_MIN_DATE_TO_ZERO) to mirror this but for bound parameters. FLAG_MIN_DATE_TO_ZERO only changes 0000-01-01 to 0000-00-00. (Bug#13766)

  • If there was more than one unique key on a table, the correct fields were not used in handling SQLSetPos(). (Bug#10563)

  • When inserting a large BLOB field, Connector/ODBC would crash due to a memory allocation error. (Bug#10562)

  • The driver was using mysql_odbc_escape_string(), which does not handle the NO_BACKSLASH_ESCAPES SQL mode. Now it uses mysql_real_escape_string(), which does. (Bug#9498)

  • SQLColumns() did not handle many of its parameters correctly, which could lead to incorrect results. The table name argument was not handled as a pattern value, and most arguments were not escaped correctly when they contained nonalphanumeric characters. (Bug#8860)

  • There are no binary packages for Microsoft Windows x64 Edition.

  • There is no binary package for Mac OS X on 64-bit PowerPC because Apple does not currently provide a 64-bit PowerPC version of iODBC.

  • Correctly return error if SQLBindCol is called with an invalid column.

  • Fixed possible crash if SQLBindCol() was not called before SQLSetPos().

  • The Mac OS X binary packages are only provided as tarballs, there is no installer.

  • The binary packages for Sun Solaris are only provided as tarballs, not the PKG format.

  • The HP-UX 11.23 IA64 binary package does not include the GUI bits because of problems building Qt on that platform.

C.3.30. Changes in MySQL Connector/ODBC 3.51.16 (14 June 2007)

Functionality added or changed:

  • Connector/ODBC now supports using SSL for communication. This is not yet exposed in the setup GUI, but must be enabled through configuration files or the DSN. (Bug#12918)

Bugs fixed:

  • Calls to SQLNativeSql() could cause stack corruption due to an incorrect pointer cast. (Bug#28758)

  • Using curors on results sets with multi-column keys could select the wrong value. (Bug#28255)

  • SQLForeignKeys does not escape _ and % in the table name arguments. (Bug#27723)

  • When using stored procedures, making a SELECT or second stored procedure call after an initial stored procedure call, the second statement will fail. (Bug#27544)

  • SQLTables() did not distinguish tables from views. (Bug#23031)

  • Data in TEXT columns would fail to be read correctly. (Bug#16917)

  • Specifying strings as parameters using the adBSTR or adVarWChar types, (SQL_WVARCHAR and SQL_WLONGVARCHAR) would be incorrectly quoted. (Bug#16235)

  • SQL_WVARCHAR and SQL_WLONGVARCHAR parameters were not properly quoted and escaped. (Bug#16235)

  • Using BETWEEN with date values, the wrong results could be returned. (Bug#15773)

  • When using the Don't Cache Results (option value 1048576) with Microsoft Access, the connection will fail using DAO/VisualBasic. (Bug#4657)

  • Return values from SQLTables() may be truncated. (Bugs #22797)

C.3.31. Changes in MySQL Connector/ODBC 3.51.15 (07 May 2007)

Bugs fixed:

  • Connector/ODBC would incorrectly claim to support SQLProcedureColumns (by returning true when queried about SQLPROCEDURECOLUMNS with SQLGetFunctions), but this functionality is not supported. (Bug#27591)

  • An incorrect transaction isolation level may not be returned when accessing the connection attributes. (Bug#27589)

  • Adding a new DSN with the myodbc3i utility under AIX would fail. (Bug#27220)

  • When inserting data using bulk statements (through SQLBulkOperations), the indicators for all rows within the insert would not updated correctly. (Bug#24306)

  • Using SQLProcedures does not return the database name within the returned resultset. (Bug#23033)

  • The SQLTransact() function did not support an empty connection handle. (Bug#21588)

  • Using SQLDriverConnect instead of SQLConnect could cause later operations to fail. (Bug#7912)

  • When using blobs and parameter replacement in a statement with WHERE CURSOR OF, the SQL is truncated. (Bug#5853)

  • Connector/ODBC would return too many foreign key results when accessing tables with similar names. (Bug#4518)

C.3.32. Changes in MySQL Connector/ODBC 3.51.14 (08 March 2007)

Functionality added or changed:

  • Use of SQL_ATTR_CONNECTION_TIMEOUT on the server has now been disabled. If you attempt to set this attribute on your connection the SQL_SUCCESS_WITH_INFO will be returned, with an error number/string of HYC00: Optional feature not supported. (Bug#19823)

  • Added auto is null option to Connector/ODBC option parameters. (Bug#10910)

  • Added auto-reconnect option to Connector/ODBC option parameters.

  • Added support for the HENV handlers in SQLEndTran().

Bugs fixed:

  • On 64-bit systems, some types would be incorrectly returned. (Bug#26024)

  • When retrieving TIME columns, C/ODBC would incorrectly interpret the type of the string and could interpret it as a DATE type instead. (Bug#25846)

  • Connector/ODBC may insert the wrong parameter values when using prepared statements under 64-bit Linux. (Bug#22446)

  • Using Connector/ODBC, with SQLBindCol and binding the length to the return value from SQL_LEN_DATA_AT_EXEC fails with a memory allocation error. (Bug#20547)

  • Using DataAdapter, Connector/ODBC may continually consume memory when reading the same records within a loop (Windows Server 2003 SP1/SP2 only). (Bug#20459)

  • When retrieving data from columns that have been compressed using COMPRESS(), the retrieved data would be truncated to 8KB. (Bug#20208)

  • The ODBC driver name and version number were incorrectly reported by the driver. (Bug#19740)

  • A string format exception would be raised when using iODBC, Connector/ODBC and the embedded MySQL server. (Bug#16535)

  • The SQLDriverConnect() ODBC method did not work with recent Connector/ODBC releases. (Bug#12393)

C.3.33. Changes in MySQL Connector/ODBC 3.51.13 (Never released)

Connector/ODBC 3.51.13 was an internal implementation and testing release.

C.3.34. Changes in MySQL Connector/ODBC 3.51.12 (11 February 2005)

Functionality added or changed:

  • N/A

Bugs fixed:

  • Using stored procedures with ADO, where the CommandType has been set correctly to adCmdStoredProc, calls to stored procedures would fail. (Bug#15635)

  • File DSNs could not be saved. (Bug#12019)

  • SQLColumns() returned no information for tables that had a column named using a reserved word. (Bug#9539)

C.3.35. Changes in MySQL Connector/ODBC 3.51.11 (28 January 2005)

Bugs fixed:

  • mysql_list_dbcolumns() and insert_fields() were retrieving all rows from a table. Fixed the queries generated by these functions to return no rows. (Bug#8198)

  • SQLGetTypoInfo() returned tinyblob for SQL_VARBINARY and nothing for SQL_BINARY. Fixed to return varbinary for SQL_VARBINARY, binary for SQL_BINARY, and longblob for SQL_LONGVARBINARY. (Bug#8138)

C.4. MySQL Connector/NET Change History

C.4.1. Changes in MySQL Connector/NET 6.0.4 (Not yet released beta)
C.4.2. Changes in MySQL Connector/NET 6.0.3 (28 April 2009 beta)
C.4.3. Changes in MySQL Connector/NET 6.0.2 (07 April 2009 beta)
C.4.4. Changes in MySQL Connector/NET 6.0.1 (02 April 2009 beta)
C.4.5. Changes in MySQL Connector/NET 6.0.0 (02 March 2009 alpha)
C.4.6. Changes in MySQL Connector/NET 5.3.0 (Not yet released)
C.4.7. Changes in MySQL Connector/NET 5.2.7 (Not yet released)
C.4.8. Changes in MySQL Connector/NET 5.2.6 (28 April 2009)
C.4.9. Changes in MySQL Connector/NET 5.2.5 (19 November 2008)
C.4.10. Changes in MySQL Connector/NET 5.2.4 (13 November 2008)
C.4.11. Changes in MySQL Connector/NET 5.2.3 (19 August 2008)
C.4.12. Changes in MySQL Connector/NET 5.2.2 (12 May 2008)
C.4.13. Changes in MySQL Connector/NET 5.2.1 (27 February 2008)
C.4.14. Changes in MySQL Connector/NET 5.2.0 (11 February 2008)
C.4.15. Changes in MySQL Connector/NET 5.1.8 (Not yet released)
C.4.16. Changes in MySQL Connector/NET 5.1.7 (21 August 2008)
C.4.17. Changes in MySQL Connector/NET 5.1.6 (12 May 2008)
C.4.18. Changes in MySQL Connector/NET 5.1.5 (Not yet released)
C.4.19. Changes in MySQL Connector/NET 5.1.4 (20 November 2007)
C.4.20. Changes in MySQL Connector/NET 5.1.3 (21 September 2007 beta)
C.4.21. Changes in MySQL Connector/NET 5.1.2 (18 June 2007)
C.4.22. Changes in MySQL Connector/NET 5.1.1 (23 May 2007)
C.4.23. Changes in MySQL Connector/NET 5.1.0 (01 May 2007)
C.4.24. Changes in MySQL Connector/NET 5.0.10 (Not yet released)
C.4.25. Changes in MySQL Connector/NET 5.0.9 (Not yet released)
C.4.26. Changes in MySQL Connector/NET 5.0.8 (21 August 2007)
C.4.27. Changes in MySQL Connector/NET 5.0.7 (18 May 2007)
C.4.28. Changes in MySQL Connector/NET 5.0.6 (22 March 2007)
C.4.29. Changes in MySQL Connector/NET 5.0.5 (07 March 2007)
C.4.30. Changes in MySQL Connector/NET 5.0.4 (Not released)
C.4.31. Changes in MySQL Connector/NET 5.0.3 (05 January 2007)
C.4.32. Changes in MySQL Connector/NET 5.0.2 (06 November 2006)
C.4.33. Changes in MySQL Connector/NET 5.0.1 (01 October 2006)
C.4.34. Changes in MySQL Connector/NET 5.0.0 (08 August 2006)
C.4.35. Changes in MySQL Connector/NET 1.0.11 (Not yet released)
C.4.36. Changes in MySQL Connector/NET 1.0.10 (24 August 2007)
C.4.37. Changes in MySQL Connector/NET 1.0.9 (02 February 2007)
C.4.38. Changes in MySQL Connector/NET 1.0.8 (20 October 2006)
C.4.39. Changes in MySQL Connector/NET 1.0.7 (21 November 2005)
C.4.40. Changes in MySQL Connector/NET 1.0.6 (03 October 2005)
C.4.41. Changes in MySQL Connector/NET 1.0.5 (29 August 2005)
C.4.42. Changes in MySQL Connector/NET 1.0.4 (20 January 2005)
C.4.43. Changes in MySQL Connector/NET 1.0.3 (12 October 2004 gamma)
C.4.44. Changes in MySQL Connector/NET 1.0.2 (15 November 2004 gamma)
C.4.45. Changes in MySQL Connector/NET 1.0.1 (27 October 2004 beta)
C.4.46. Changes in MySQL Connector/NET 1.0.0 (01 September 2004)
C.4.47. Changes in MySQL Connector/NET Version 0.9.0 (30 August 2004)
C.4.48. Changes in MySQL Connector/NET Version 0.76
C.4.49. Changes in MySQL Connector/NET Version 0.75
C.4.50. Changes in MySQL Connector/NET Version 0.74
C.4.51. Changes in MySQL Connector/NET Version 0.71
C.4.52. Changes in MySQL Connector/NET Version 0.70
C.4.53. Changes in MySQL Connector/NET Version 0.68
C.4.54. Changes in MySQL Connector/NET Version 0.65
C.4.55. Changes in MySQL Connector/NET Version 0.60
C.4.56. Changes in MySQL Connector/NET Version 0.50

C.4.1. Changes in MySQL Connector/NET 6.0.4 (Not yet released beta)

This is a new Beta development release, fixing recently discovered bugs.

Bugs fixed:

  • A SQL query string containing an escaped backslash caused an exception to be generated:

    Index and length must refer to a location within the string.
    Parameter name: length
    at System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean
    fAlwaysCopy)
    at MySql.Data.MySqlClient.MySqlTokenizer.NextParameter()
    at MySql.Data.MySqlClient.Statement.InternalBindParameters(String sql,
    MySqlParameterCollection parameters, MySqlPacket packet)
    at MySql.Data.MySqlClient.Statement.BindParameters()
    at MySql.Data.MySqlClient.PreparableStatement.Execute()
    at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior be‎havior)
    at MySql.Data.MySqlClient.MySqlCommand.ExecuteNonQuery()

    (Bug#44960)

  • The Microsoft Visual Studio solution file MySQL-VS2005.sln was invalid. Several projects could not be loaded and thus it was not possible to build Connector/NET from source. (Bug#44822)

  • The DataReader in Connector/NET 6.0.3 considered a BINARY(16) field as a GUID with a length of 16. (Bug#44507)

  • When creating a new DataSet the following error was generated:

    Failed to open a connection to database.
    Cannot load type with name 'MySQL.Data.VisualStudio.StoredProcedureColumnEnumerator'

    (Bug#44460)

  • The Connector/NET MySQLRoleProvider reported that there were no roles, even when roles existed. (Bug#44414)

C.4.2. Changes in MySQL Connector/NET 6.0.3 (28 April 2009 beta)

This is a new Beta development release, fixing recently discovered bugs.

Functionality added or changed:

  • The MySqlTokenizer failed to split fieldnames from values if they were not separated by a space. This also happened if the string contained certain characters. As a result MySqlCommand.ExecuteNonQuery raised an index out of range exception.

    The resulting errors are illustrated by the following examples. Note, the example statements do not have delimiting spaces around the = operator.

    INSERT INTO anytable SET Text='test--test';

    The tokenizer incorrectly interpreted the value as containing a comment.

    UPDATE anytable SET Project='123-456',Text='Can you explain this ?',Duration=15 WHERE
    ID=4711;'

    A MySqlException was generated, as the ? in the value was interpreted by the tokenizer as a parameter sign. The error message generated was:

    Fatal error encountered during command execution.
    EXCEPTION: MySqlException - Parameter '?'' must be defined.

    (Bug#44318)

Bugs fixed:

  • MySQL.Data was not displayed as a Reference inside Microsoft Visual Studio 2008 Professional.

    When a new C# project was created in Microsoft Visual Studio 2008 Professional, MySQL.Data was not displayed when References, Add Reference was selected. (Bug#44141)

  • Column types for SchemaProvider and ISSchemaProvider did not match.

    When the source code in SchemaProvider.cs and ISSchemaProvider.cs were compared it was apparent that they were not using the same column types. The base provider used SQL such as SHOW CREATE TABLE, while ISSchemaProvider used the schema information tables. Column types used by the base class were INT64 and the column types used by ISSchemaProvider were UNSIGNED. (Bug#44123)

C.4.3. Changes in MySQL Connector/NET 6.0.2 (07 April 2009 beta)

This is a new Beta development release, fixing recently discovered bugs.

Bugs fixed:

  • Connector/Net 6.0.1 did not load in Microsoft Visual Studio 2008 and Visual Studio 2005 Pro.

    The following error message was generated:

    .NET Framework Data Provider for MySQL: The data provider object factory service was not
    found.

    (Bug#44064)

C.4.4. Changes in MySQL Connector/NET 6.0.1 (02 April 2009 beta)

This is a new Beta development release, fixing recently discovered bugs.

Bugs fixed:

  • An insert and update error was generated by the decimal data type in the Entity Framework, when a German collation was used. (Bug#43574)

  • Generating an Entity Data Model (EDM) schema with a table containing columns with data types MEDIUMTEXT and LONGTEXT generated a runtime error message “Max value too long or too short for Int32”. (Bug#43480)

C.4.5. Changes in MySQL Connector/NET 6.0.0 (02 March 2009 alpha)

This is a new Alpha development release.

Bugs fixed:

  • A null reference exception was generated when MySqlConnection.ClearPool(connection) was called. (Bug#42801)

C.4.6. Changes in MySQL Connector/NET 5.3.0 (Not yet released)

Bugs fixed:

  • The Web Provider did not work at all on a remote host, and did not create a database when using autogenerateschema="true". (Bug#39072)

  • The Connector/NET installer program ended prematurely without reporting the specific error. (Bug#39019)

  • When called with an incorrect password the MembershipProvider.GetPassword() method threw a MySQLException instead of a MembershipPasswordException . (Bug#38939)

  • Possible overflow in MySqlPacket.ReadLong(). (Bug#36997)

  • The TokenizeSql method was adding query overhead and causing high CPU utilization for larger queries. (Bug#36836)

C.4.7. Changes in MySQL Connector/NET 5.2.7 (Not yet released)

Bugs fixed:

  • The Microsoft Visual Studio solution file MySQL-VS2005.sln was invalid. Several projects could not be loaded and thus it was not possible to build Connector/NET from source. (Bug#44822)

  • The Connector/NET MySQLRoleProvider reported that there were no roles, even when roles existed. (Bug#44414)

  • When a TableAdapter was created on a DataSet, it was not possible to use a stored procedure with variables. The following error was generated:

    The method or operation is not implemented

    (Bug#39409)

C.4.8. Changes in MySQL Connector/NET 5.2.6 (28 April 2009)

Functionality added or changed:

  • A new connection string option has been added: use affected rows. When true the connection will report changed rows instead of found rows. (Bug#44194)

Bugs fixed:

  • Calling GetSchema() on Indexes or IndexColumns failed where index or column names were restricted.

    In SchemaProvider.cs, methods GetIndexes() and GetIndexColumns() passed their restrictions directly to GetTables(). This only worked if the restrictions were no more specific than schemaName and tableName. If IndexName was given, this was passed to GetTables() where it was treated as TableType. As a result no tables were returned, unless the index name happened to be BASE TABLE or VIEW. This meant that both methods failed to return any rows. (Bug#43991)

  • GetSchema("MetaDataCollections") should have returned a table with a column named “NumberOfRestrictions” not “NumberOfRestriction”.

    This can be confirmed by referencing the Microsoft Documentation. (Bug#43990)

  • Requests sent to the Connector/NET role provider to remove a user from a role failed. The query log showed the query was correctly executed within a transaction which was immediately rolled back. The rollback was caused by a missing call to the Complete method of the transaction. (Bug#43553)

  • When using MySqlBulkLoader.Load(), the text file is opened by NativeDriver.SendFileToServer. If it encountered a problem opening the file as a stream, an exception was generated and caught. An attempt to clean up resources was then made in the finally{} clause by calling fs.Close(), but since the stream was never successfully opened, this was an attempt to execute a method of a null reference. (Bug#43332)

  • A null reference exception was generated when MySqlConnection.ClearPool(connection) was called. (Bug#42801)

  • MySQLMembershipProvider.ValidateUser only used the userId to validate. However, it should also use the applicationId to perform the validation correctly.

    The generated query was, for example:

    SELECT Password, PasswordKey, PasswordFormat, IsApproved, Islockedout
    FROM my_aspnet_Membership WHERE userId=13

    Note that applicationId is not used. (Bug#42574)

  • There was an error in the ProfileProvider class in the private ProfileInfoCollection GetProfiles() function. The column of the final table was named “lastUpdatdDate” ('e' is missing) instead of the correct “lastUpdatedDate”. (Bug#41654)

  • The GetGuid() method of MySqlDataReader did not treat BINARY(16) column data as a GUID. When operating on such a column a FormatException exception was generated. (Bug#41452)

  • When ASP.NET membership was configured to not require password question and answer using requiresQuestionAndAnswer="false", a SqlNullValueException was generated when using MembershipUser.ResetPassword() to reset the user password. (Bug#41408)

  • If a Stored Procedure contained spaces in its parameter list, and was then called from Connector/NET, an exception was generated. However, the same Stored Procedure called from the MySQL Query Analyzer or the MySQL Client worked correctly.

    The exception generated was:

    Parameter '0' not found in the collection.
    

    (Bug#41034)

  • The DATETIME format contained an erroneous space. (Bug#41021)

  • When MySql.Web.Profile.MySQLProfileProvider was configured, it was not possible to assign a name other than the default name MySQLProfileProvider.

    If the name SCC_MySQLProfileProvider was assigned, an exception was generated when attempting to use Page.Context.Profile['custom prop'].

    The exception generated was:

    The profile default provider was not found.

    Note that the exception stated: 'the profile default provider...', even though a different name was explicitly requested. (Bug#40871)

  • When ExecuteNonQuery was called with a command type of Stored Procedure it worked for one user but resulted in a hang for another user with the same database permissions.

    However, if CALL was used in the command text and ExecuteNonQuery was used with a command type of Text, the call worked for both users. (Bug#40139)

C.4.9. Changes in MySQL Connector/NET 5.2.5 (19 November 2008)

Bugs fixed:

  • Visual Studio 2008 displayed the following error three times on start-up:

    "Package Load Failure
    
    Package 'MySql.Data.VisualStudio.MySqlDataProviderPackage, MySql.VisualStudio,
    Version=5.2.4, Culture=neutral, PublicKeyTopen=null' has failed to load properly (GUID =
    {79A115C9-B133-4891-9E7B-242509DAD272}).  Please contact the package vendor for
    assistance.  Application restart is recommended, due to possible environment corruption.
    Would you like to disable loading the package in the future?  You may use
    'devenve/resetskippkgs' to re-enable package loading."
    

    (Bug#40726)

C.4.10. Changes in MySQL Connector/NET 5.2.4 (13 November 2008)

Bugs fixed:

  • MySqlDataReader did not feature a GetSByte method. (Bug#40571)

  • When working with stored procedures Connector/NET generated an exception Unknown "table parameters" in information_schema. (Bug#40382)

  • GetDefaultCollation and GetMaxLength were not thread safe. These functions called the database to get a set of parameters and cached them in two static dictionaries in the function InitCollections. However, if many threads called them they would try to insert the same keys in the collections resulting in duplicate key exceptions. (Bug#40231)

  • If connection pooling was not set explicitly in the connection string, Connector/NET added “;Pooling=False” to the end of the connection string when MySqlCommand.ExecuteReader() was called.

    If connection pooling was explicitly set in the connection string, when MySqlConnection.Open() was called it converted “Pooling=True” to “pooling=True”.

    If MySqlCommand.ExecuteReader() was subsequently called, it concatenated “;Pooling=False” to the end of the connection string. The resulting connection string was thus terminated with “pooling=True;Pooling=False”. This disabled connection pooling completely. (Bug#40091)

  • The connection string option Functions Return String did not set the correct encoding for the result string. Even though the connection string option Functions Return String=true; is set, the result of SELECT DES_DECRYPT() contained “??” instead of the correct national character symbols. (Bug#40076)

  • If, when using the MySqlTransaction transaction object, an exception was thrown, the transaction object was not disposed of and the transaction was not rolled back. (Bug#39817)

  • After the ConnectionString property was initialized via the public setter of DbConnectionStringBuilder, the GetConnectionString method of MySqlConnectionStringBuilder incorrectly returned null when true was assigned to the includePass parameter. (Bug#39728)

  • When using ProfileProvider, attempting to update a previously saved property failed. (Bug#39330)

  • Reading a negative time value greater than -01:00:00 returned the absolute value of the original time value. (Bug#39294)

  • Inserting a negative time value (negative TimeSpan) into a Time column through the use of MySqlParameter caused MySqlException to be thrown. (Bug#39275)

  • When a data connection was created in the server explorer of Visual Studio 2008 Team, an error was generated when trying to expand stored procedures that had parameters.

    Also, if TableAdapter was right-clicked and then Add, Query, Use Existing Stored Procedures selected, if you then attempted to select a stored procedure, the window would close and no error message would be displayed. (Bug#39252)

  • The Web Provider did not work at all on a remote host, and did not create a database when using autogenerateschema="true". (Bug#39072)

  • Connector/NET called hashed password methods not supported in Mono 2.0 Preview 2. (Bug#38895)

C.4.11. Changes in MySQL Connector/NET 5.2.3 (19 August 2008)

Functionality added or changed:

  • Error string was returned after a 28000 second wait_timeout. This has been changed to generate a ConnectionState.Closed event. (Bug#38119)

  • Changed how the procedure schema collection is retrieved. If the connection string contains “use procedure bodies=true” then a SELECT is performed on the mysql.proc table directly, as this is up to 50 times faster than the current Information Schema implementation. If the connection string contains “use procedure bodies=false”, then the Information Schema collection is queried. (Bug#36694)

  • Changed how the procedure schema collection is retrieved. If use procedure bodies=true then the mysql.proc table is selected directly as this is up to 50 times faster than the current information_schema implementation. If use procedure bodies=false, then the information_schema collection is queried. (Bug#36694)

  • String escaping functionality has been moved from the MySqlString class to the MySqlHelper class, where it can be accessed by the EscapeString method. (Bug#36205)

Bugs fixed:

  • The GetOrdinal() method failed to return the ordinal if the column name string contained an accent. (Bug#38721)

  • Connector/Net uninstaller did not clean up all installed files. (Bug#38534)

  • There was a short circuit evaluation error in the MySqlCommand.CheckState() method. When the statement connection == null was true a NullReferenceException was thrown and not the expected InvalidOperationException. (Bug#38276)

  • The provider did not silently create the user if the user did not exist. (Bug#38243)

  • Executing a command that resulted in a fatal exception did not close the connection. (Bug#37991)

  • When a prepared insert query is run that contains an UNSIGNED TINYINT in the parameter list, the complete query and data that should be inserted is corrupted and no error is thrown. (Bug#37968)

  • In a .NET application MySQL Connector/NET modifies the connection string so that it contains several occurrences of the same option with different values. This is illustrated by the example that follows.

    The original connection string:

      host=localhost;database=test;uid=*****;pwd=*****;
      connect timeout=25; auto enlist=false;pooling=false;

    The connection string after after closing MySqlDataReader:

      host=localhost;database=test;uid=*****;pwd=*****;
      connect timeout=25;auto enlist=false;pooling=false;
      Allow User Variables=True;Allow User Variables=False;
      Allow User Variables=True;Allow User Variables=False;

    (Bug#37955)

  • Unnecessary network traffic was generated for the normal case where the web provider schema was up to date. (Bug#37469)

  • MySqlReader.GetOrdinal() performance enhancements break existing functionality. (Bug#37239)

  • The autogenerateschema option produced tables with incorrect collations. (Bug#36444)

  • GetSchema did not work correctly when querying for a collection, if using a non-English locale. (Bug#35459)

  • When reading back a stored double or single value using the .NET provider, the value had less precision than the one stored. (Bug#33322)

  • Using the MySQL Visual Studio plugin and a MySQL 4.1 server, certain field types (ENUM) would not be identified correctly. Also, when looking for tables, the plugin would list all tables matching a wildcard pattern of the database name supplied in the connection string, instead of only tables within the specified database. (Bug#30603)

C.4.12. Changes in MySQL Connector/NET 5.2.2 (12 May 2008)

Bugs fixed:

  • Product documentation incorrectly stated '?' is the preferred parameter marker. (Bug#37349)

  • An incorrect value for a bit field would returned in a multi-row query if a preceding value for the field returned NULL. (Bug#36313)

  • Tables with GEOMETRY field types would return an unknown datatype exception. (Bug#36081)

  • When using the MySQLProfileProvider, setting profile details and then reading back saved data would result in the default values being returned instead of the updated values. (Bug#36000)

  • When creating a connection, setting the ConnectionString property of MySqlConnection to NULL would throw an exception. (Bug#35619)

  • The DbCommandBuilder.QuoteIdentifer method was not implemented. (Bug#35492)

  • When using encrypted passwords, the GetPassword() function would return the wrong string. (Bug#35336)

  • An error would be raised when calling GetPassword() with a NULL value. (Bug#35332)

  • When retreiving data where a field has been identified as containing a GUID value, the incorrect value would be returned when a previous row contained a NULL value for that field. (Bug#35041)

  • Using the TableAdapter Wizard would fail when generating commands that used stored procedures due to the change in supported parameter characters. (Bug#34941)

  • When creating a new stored procedured, the new parameter code which allows the use of the @ symbol would interfere with the specification of a DEFINER. (Bug#34940)

  • When using SqlDataSource to open a connection, the connection would not automatically be closed when access had completed. (Bug#34460)

  • There was a high level of contention in the connection pooling code that could lead to delays when opening connections and submitting queries. The connection pooling code has been modified to try and limit the effects of the contention issue. (Bug#34001)

  • Using the TableAdaptor wizard in combination with a suitable SELECT statement, only the associated INSERT statement would also be created, rather than the required DELETE and UPDATE statements. (Bug#31338)

  • Fixed problem in datagrid code related to creating a new table. This problem may have been introduced with .NET 2.0 SP1.

  • Fixed profile provider that would throw an exception if you were updating a profile that already existed.

C.4.13. Changes in MySQL Connector/NET 5.2.1 (27 February 2008)

Bugs fixed:

  • When using the provider to generate or update users and passwords, the password checking algorithm would not validate the password strength or requirements correctly. (Bug#34792)

  • When executing statements that used stored procedures and functions, the new parameter code could fail to identify the correct parameter format. (Bug#34699)

  • The installer would fail to the DDEX provider binary if the Visual Studio 2005 component was not selected. The result would lead to Connector/NET not loading properly when using the interface to a MySQL server within Visual Studio. (Bug#34674)

  • A number issues were identified in the case, connection and scema areas of the code for MembershipProvider, RoleProvider, ProfileProvider. (Bug#34495)

  • When using web providers, the Connector/NET would check the schema and cache the application id, even when the connection string had been set. The effect would be to break the memvership provider list. (Bug#34451)

  • Attempting to use an isolation level other than the default with a transaction scope would use the default isolation level. (Bug#34448)

  • When altering a stored procedure within Visual Studio, the parameters to the procedure could be lost. (Bug#34359)

  • A race condition could occur within the procedure cache resulting the cache contents overflowing beyond the configured cache size. (Bug#34338)

  • Fixed problem with Visual Studio 2008 integration that caused pop-up menus on server explorer nodes to not function

  • The provider code has been updated to fix a number of outstanding issues.

C.4.14. Changes in MySQL Connector/NET 5.2.0 (11 February 2008)

Functionality added or changed:

  • Performing GetValue() on a field TINYINT(1) returned a BOOLEAN. While not a bug, this caused problems in software that expected an INT to be returned. A new connection string option Treat Tiny As Boolean has been added with a default value of true. If set to false the provider will treat TINYINT(1) as INT. (Bug#34052)

  • Added support for DbDataAdapter UpdateBatchSize. Batching is fully supported including collapsing inserts down into the multi-value form if possible.

  • DDEX provider now works under Visual Studio 2008 beta 2.

  • Added ClearPool and ClearAllPools features.

Bugs fixed:

  • Some speed improvements have been implemented in the TokenizeSql process used to identify elements of SQL statements. (Bug#34220)

  • When accessing tables from different databases within the same TransactionScope, the same user/password combination would be used for each database connection. Connector/NET does not handle multiple connections within the same transaction scope. An error is now returned if you attempt this process, instead of using the incorrect authorization information. (Bug#34204)

  • The status of connections reported through the state change handler was not being updated correctly. (Bug#34082)

  • Incorporated some connection string cache optimizations sent to us by Maxim Mass. (Bug#34000)

  • In an open connection where the server had disconnected unexpectedly, the status information of the connection would not be updated properly. (Bug#33909)

  • Data cached from the connection string could return invalid information because the internal routines were not using case-sensitive semantics. This lead to updated connection string options not being recognized if they were of a different case than the existing cached values. (Bug#31433)

  • Column name metadata was not using the character set as deifned within the connection string being used. (Bug#31185)

  • Memory usage could increase and decrease significantly when updating or inserting a large number of rows. (Bug#31090)

  • Commands executed from within the state change handeler would fail with a NULL exception. (Bug#30964)

  • When running a stored procedure multiple times on the same connection, the memory usage could increase indefinitely. (Bug#30116)

  • Using compression in the MySQL connection with Connector/NET would be slower than using native (uncompressed) communication. (Bug#27865)

  • The MySqlDbType.Datetime has been replaced with MySqlDbType.DateTime. The old format has been obsoleted. (Bug#26344)

C.4.15. Changes in MySQL Connector/NET 5.1.8 (Not yet released)

Bugs fixed:

  • Calling GetSchema() on Indexes or IndexColumns failed where index or column names were restricted.

    In SchemaProvider.cs, methods GetIndexes() and GetIndexColumns() passed their restrictions directly to GetTables(). This only worked if the restrictions were no more specific than schemaName and tableName. If IndexName was given, this was passed to GetTables() where it was treated as TableType. As a result no tables were returned, unless the index name happened to be BASE TABLE or VIEW. This meant that both methods failed to return any rows. (Bug#43991)

  • The DATETIME format contained an erroneous space. (Bug#41021)

  • If connection pooling was not set explicitly in the connection string, Connector/NET added “;Pooling=False” to the end of the connection string when MySqlCommand.ExecuteReader() was called.

    If connection pooling was explicitly set in the connection string, when MySqlConnection.Open() was called it converted “Pooling=True” to “pooling=True”.

    If MySqlCommand.ExecuteReader() was subsequently called, it concatenated “;Pooling=False” to the end of the connection string. The resulting connection string was thus terminated with “pooling=True;Pooling=False”. This disabled connection pooling completely. (Bug#40091)

  • If, when using the MySqlTransaction transaction object, an exception was thrown, the transaction object was not disposed of and the transaction was not rolled back. (Bug#39817)

  • When a prepared insert query is run that contains an UNSIGNED TINYINT in the parameter list, the complete query and data that should be inserted is corrupted and no error is thrown. (Bug#37968)

C.4.16. Changes in MySQL Connector/NET 5.1.7 (21 August 2008)

Bugs fixed:

  • There was a short circuit evaluation error in the MySqlCommand.CheckState() method. When the statement connection == null was true a NullReferenceException was thrown and not the expected InvalidOperationException. (Bug#38276)

  • Executing a command that resulted in a fatal exception did not close the connection. (Bug#37991)

  • In a .NET application MySQL Connector/NET modifies the connection string so that it contains several occurrences of the same option with different values. This is illustrated by the example that follows.

    The original connection string:

      host=localhost;database=test;uid=*****;pwd=*****;
      connect timeout=25; auto enlist=false;pooling=false;

    The connection string after after closing MySqlDataReader:

      host=localhost;database=test;uid=*****;pwd=*****;
      connect timeout=25;auto enlist=false;pooling=false;
      Allow User Variables=True;Allow User Variables=False;
      Allow User Variables=True;Allow User Variables=False;

    (Bug#37955)

  • As MySqlDbType.DateTime is not available in VB.Net the warning The datetime enum value is obsolete was always shown during compilation. (Bug#37406)

  • An unknown MySqlErrorCode was encountered when opening a connection with an incorrect password. (Bug#37398)

  • Documentation incorrectly stated that “the DataColumn class in .NET 1.0 and 1.1 does not allow columns with type of UInt16, UInt32, or UInt64 to be autoincrement columns”. (Bug#37350)

  • SemaphoreFullException is generated when application is closed. (Bug#36688)

  • GetSchema did not work correctly when querying for a collection, if using a non-English locale. (Bug#35459)

  • When reading back a stored double or single value using the .NET provider, the value had less precision than the one stored. (Bug#33322)

  • Using the MySQL Visual Studio plugin and a MySQL 4.1 server, certain field types (ENUM) would not be identified correctly. Also, when looking for tables, the plugin would list all tables matching a wildcard pattern of the database name supplied in the connection string, instead of only tables within the specified database. (Bug#30603)

C.4.17. Changes in MySQL Connector/NET 5.1.6 (12 May 2008)

Bugs fixed:

  • When creating a connection pool, specifying an invalid IP address will cause the entire application to crash, instead of providing an exception. (Bug#36432)

  • An incorrect value for a bit field would returned in a multi-row query if a preceding value for the field returned NULL. (Bug#36313)

  • The MembershipProvider will raise an exception when the connection string is configured with enablePasswordRetrival = true and RequireQuestionAndAnswer = false. (Bug#36159)

  • When calling GetNumberOfUsersOnline an exception is raised on the submitted query due to a missing parameter. (Bug#36157)

  • Tables with GEOMETRY field types would return an unknown datatype exception. (Bug#36081)

  • When creating a connection, setting the ConnectionString property of MySqlConnection to NULL would throw an exception. (Bug#35619)

  • The DbCommandBuilder.QuoteIdentifer method was not implemented. (Bug#35492)

  • When using SqlDataSource to open a connection, the connection would not automatically be closed when access had completed. (Bug#34460)

  • Attempting to use an isolation level other than the default with a transaction scope would use the default isolation level. (Bug#34448)

  • When altering a stored procedure within Visual Studio, the parameters to the procedure could be lost. (Bug#34359)

  • A race condition could occur within the procedure cache resulting the cache contents overflowing beyond the configured cache size. (Bug#34338)

  • Using the TableAdaptor wizard in combination with a suitable SELECT statement, only the associated INSERT statement would also be created, rather than the required DELETE and UPDATE statements. (Bug#31338)

C.4.18. Changes in MySQL Connector/NET 5.1.5 (Not yet released)

Functionality added or changed:

  • Performing GetValue() on a field TINYINT(1) returned a BOOLEAN. While not a bug, this caused problems in software that expected an INT to be returned. A new connection string option Treat Tiny As Boolean has been added with a default value of true. If set to false the provider will treat TINYINT(1) as INT. (Bug#34052)

Bugs fixed:

  • Some speed improvements have been implemented in the TokenizeSql process used to identify elements of SQL statements. (Bug#34220)

  • When accessing tables from different databases within the same TransactionScope, the same user/password combination would be used for each database connection. Connector/NET does not handle multiple connections within the same transaction scope. An error is now returned if you attempt this process, instead of using the incorrect authorization information. (Bug#34204)

  • The status of connections reported through the state change handler was not being updated correctly. (Bug#34082)

  • Incorporated some connection string cache optimizations sent to us by Maxim Mass. (Bug#34000)

  • In an open connection where the server had disconnected unexpectedly, the status information of the connection would not be updated properly. (Bug#33909)

  • Connector/NET would fail to compile properly with nant. (Bug#33508)

  • Problem with membership provider would mean that FindUserByEmail would fail with a MySqlException because it was trying to add a second parameter with the same name as the first. (Bug#33347)

  • Using compression in the MySQL connection with Connector/NET would be slower than using native (uncompressed) communication. (Bug#27865)

C.4.19. Changes in MySQL Connector/NET 5.1.4 (20 November 2007)

Bugs fixed:

  • Setting the size of a string parameter after the value could cause an exception. (Bug#32094)

  • Creation of parameter objects with noninput direction using a constructor would fail. This was cause by some old legacy code preventing their use. (Bug#32093)

  • A date string could be returned incorrectly by MySqlDataTime.ToString() when the date returned by MySQL was 0000-00-00 00:00:00. (Bug#32010)

  • A syntax error in a set of batch statements could leave the data adapter in a state that appears hung. (Bug#31930)

  • Installing over a failed uninstall of a previous version could result in multiple clients being registered in the machine.config. This would prevent certain aspects of the MySQL connection within Visual Studio to work properly. (Bug#31731)

  • Connector/NET would incorrectly report success when enlisting in a distributed transaction, although distributed transactions are not supported. (Bug#31703)

  • Data cached from the connection string could return invalid information because the internal routines were not using case-sensitive semantics. This lead to updated connection string options not being recognized if they were of a different case than the existing cached values. (Bug#31433)

  • Trying to use a connection that was not open could return an ambiguous and misleading error message. (Bug#31262)

  • Column name metadata was not using the character set as deifned within the connection string being used. (Bug#31185)

  • Memory usage could increase and decrease significantly when updating or inserting a large number of rows. (Bug#31090)

  • Commands executed from within the state change handeler would fail with a NULL exception. (Bug#30964)

  • Extracting data through XML functions within a query returns the data as System.Byte[]. This was due to Connector/NET incorrectly identifying BLOB fields as binary, rather than text. (Bug#30233)

  • When running a stored procedure multiple times on the same connection, the memory usage could increase indefinitely. (Bug#30116)

  • Column types with only 1-bit (such as BOOLEAN and TINYINT(1) were not returned as boolean fields. (Bug#27959)

  • When accessing certain statements, the command would timeout before the command completed. Because this cannot always be controlled through the individual command timeout options, a default command timeout has been added to the connection string options. (Bug#27958)

  • The server error code was not updated in the Data[] hash, which prevented DbProviderFactory users from accessing the server error code. (Bug#27436)

  • The MySqlDbType.Datetime has been replaced with MySqlDbType.DateTime. The old format has been obsoleted. (Bug#26344)

  • Changing the connection string of a connection to one that changes the parameter marker after the connection had been assigned to a command but before the connection is opened could cause parameters to not be found. (Bug#13991)

C.4.20. Changes in MySQL Connector/NET 5.1.3 (21 September 2007 beta)

This is a new Beta development release, fixing recently discovered bugs.

Bugs fixed:

  • An incorrect ConstraintException could be raised on an INSERT when adding rows to a table with a multiple-column unique key index. (Bug#30204)

  • A DATE field would be updated with a date/time value, causing a MySqlDataAdapter.Update() exception. (Bug#30077)

  • The Saudi Hijri calendar was not supported. (Bug#29931)

  • Calling SHOW CREATE PROCEDURE for routines with a hyphen in the catalog name produced a syntax error. (Bug#29526)

  • Connecting to a MySQL server earlier than version 4.1 would raise a NullException. (Bug#29476)

  • The availability of a MySQL server would not be reset when using pooled connections (pooling=true). This would lead to the server being reported as unavailable, even if the server become available while the application was still running. (Bug#29409)

  • A FormatException error would be raised if a parameter had not been found, instead of Resources.ParameterMustBeDefined. (Bug#29312)

  • An exception would be thrown when using the Manage Role functionality within the web administrator to assign a role to a user. (Bug#29236)

  • Using the membership/role providers when validationKey or decryptionKey parameters are set to AutoGenerate, an exception would be raised when accessing the corresponding values. (Bug#29235)

  • Certain operations would not check the UsageAdvisor setting, causing log messages from the Usage Advisor even when it was disabled. (Bug#29124)

  • Using the same connection string multiple times would result in Database=dbname appearing multiple times in the resulting string. (Bug#29123)

  • Visual Studio Plugin: Adding a new query based on a stored procedure that uses the SELECT statement would terminate the query/TableAdapter wizard. (Bug#29098)

  • Using TransactionScope would cause an InvalidOperationException. (Bug#28709)

C.4.21. Changes in MySQL Connector/NET 5.1.2 (18 June 2007)

This is a new Beta development release, fixing recently discovered bugs.

Bugs fixed:

  • Log messages would be truncated to 300 bytes. (Bug#28706)

  • Creating a user would fail due to the application name being set incorrectly. (Bug#28648)

  • Visual Studio Plugin: Adding a new query based on a stored procedure that used a UPDATE, INSERT or DELETE statement would terminate the query/TableAdapter wizard. (Bug#28536)

  • Visual Studio Plugin: Query Builder would fail to show TINYTEXT columns, and any columns listed after a TINYTEXT column correctly. (Bug#28437)

  • Accessing the results from a large query when using data compression in the connection would fail to return all the data. (Bug#28204)

  • Visual Studio Plugin: Update commands would not be generated correctly when using the TableAdapter wizard. (Bug#26347)

C.4.22. Changes in MySQL Connector/NET 5.1.1 (23 May 2007)

Bugs fixed:

  • Running the statement SHOW PROCESSLIST would return columns as byte arrays instead of native columns. (Bug#28448)

  • Installation of the Connector/NET on Windows would fail if VisualStudio had not already been installed. (Bug#28260)

  • Connector/NET would look for the wrong table when executing User.IsRole(). (Bug#28251)

  • Building a connection string within a tight loop would show slow performance. (Bug#28167)

  • The UNSIGNED flag for parameters in a stored procedure would be ignored when using MySqlCommandBuilder to obtain the parameter information. (Bug#27679)

  • Using MySQLDataAdapter.FillSchema() on a stored procedure would raise an exception: Invalid attempt to access a field before calling Read(). (Bug#27668)

  • DATETIME fields from versions of MySQL bgefore 4.1 would be incorrectly parsed, resulting in a exception. (Bug#23342)

  • Fixed password property on MySqlConnectionStringBuilder to use PasswordPropertyText attribute. This causes dots to show instead of actual password text.

C.4.23. Changes in MySQL Connector/NET 5.1.0 (01 May 2007)

Functionality added or changed:

  • Now compiles for .NET CF 2.0.

  • Rewrote stored procedure parsing code using a new SQL tokenizer. Really nasty procedures including nested comments are now supported.

  • GetSchema will now report objects relative to the currently selected database. What this means is that passing in null as a database restriction will report objects on the currently selected database only.

  • Added Membership and Role provider contributed by Sean Wright (thanks!).

C.4.24. Changes in MySQL Connector/NET 5.0.10 (Not yet released)

Bugs fixed:

  • If, when using the MySqlTransaction transaction object, an exception was thrown, the transaction object was not disposed of and the transaction was not rolled back. (Bug#39817)

  • Executing a command that resulted in a fatal exception did not close the connection. (Bug#37991)

  • When a prepared insert query is run that contains an UNSIGNED TINYINT in the parameter list, the complete query and data that should be inserted is corrupted and no error is thrown. (Bug#37968)

  • In a .NET application MySQL Connector/NET modifies the connection string so that it contains several occurrences of the same option with different values. This is illustrated by the example that follows.

    The original connection string:

      host=localhost;database=test;uid=*****;pwd=*****;
      connect timeout=25; auto enlist=false;pooling=false;

    The connection string after after closing MySqlDataReader:

      host=localhost;database=test;uid=*****;pwd=*****;
      connect timeout=25;auto enlist=false;pooling=false;
      Allow User Variables=True;Allow User Variables=False;
      Allow User Variables=True;Allow User Variables=False;

    (Bug#37955)

  • When creating a connection pool, specifying an invalid IP address will cause the entire application to crash, instead of providing an exception. (Bug#36432)

  • GetSchema did not work correctly when querying for a collection, if using a non-English locale. (Bug#35459)

  • When reading back a stored double or single value using the .NET provider, the value had less precision than the one stored. (Bug#33322)

C.4.25. Changes in MySQL Connector/NET 5.0.9 (Not yet released)

Bugs fixed:

  • The DbCommandBuilder.QuoteIdentifer method was not implemented. (Bug#35492)

  • Setting the size of a string parameter after the value could cause an exception. (Bug#32094)

  • Creation of parameter objects with noninput direction using a constructor would fail. This was cause by some old legacy code preventing their use. (Bug#32093)

  • A date string could be returned incorrectly by MySqlDataTime.ToString() when the date returned by MySQL was 0000-00-00 00:00:00. (Bug#32010)

  • A syntax error in a set of batch statements could leave the data adapter in a state that appears hung. (Bug#31930)

  • Installing over a failed uninstall of a previous version could result in multiple clients being registered in the machine.config. This would prevent certain aspects of the MySQL connection within Visual Studio to work properly. (Bug#31731)

  • Data cached from the connection string could return invalid information because the internal routines were not using case-sensitive semantics. This lead to updated connection string options not being recognized if they were of a different case than the existing cached values. (Bug#31433)

  • Column name metadata was not using the character set as deifned within the connection string being used. (Bug#31185)

  • Memory usage could increase and decrease significantly when updating or inserting a large number of rows. (Bug#31090)

  • Commands executed from within the state change handeler would fail with a NULL exception. (Bug#30964)

  • When running a stored procedure multiple times on the same connection, the memory usage could increase indefinitely. (Bug#30116)

  • The server error code was not updated in the Data[] hash, which prevented DbProviderFactory users from accessing the server error code. (Bug#27436)

  • Changing the connection string of a connection to one that changes the parameter marker after the connection had been assigned to a command but before the connection is opened could cause parameters to not be found. (Bug#13991)

C.4.26. Changes in MySQL Connector/NET 5.0.8 (21 August 2007)

Note

This version introduces a new installer technology.

Bugs fixed:

  • Extracting data through XML functions within a query returns the data as System.Byte[]. This was due to Connector/NET incorrectly identifying BLOB fields as binary, rather than text. (Bug#30233)

  • An incorrect ConstraintException could be raised on an INSERT when adding rows to a table with a multiple-column unique key index. (Bug#30204)

  • A DATE field would be updated with a date/time value, causing a MySqlDataAdapter.Update() exception. (Bug#30077)

  • Fixed bug where Connector/Net was hand building some date time patterns rather than using the patterns provided under CultureInfo. This caused problems with some calendars that do not support the same ranges as Gregorian.. (Bug#29931)

  • Calling SHOW CREATE PROCEDURE for routines with a hyphen in the catalog name produced a syntax error. (Bug#29526)

  • The availability of a MySQL server would not be reset when using pooled connections (pooling=true). This would lead to the server being reported as unavailable, even if the server become available while the application was still running. (Bug#29409)

  • A FormatException error would be raised if a parameter had not been found, instead of Resources.ParameterMustBeDefined. (Bug#29312)

  • Certain operations would not check the UsageAdvisor setting, causing log messages from the Usage Advisor even when it was disabled. (Bug#29124)

  • Using the same connection string multiple times would result in Database=dbname appearing multiple times in the resulting string. (Bug#29123)

  • Log messages would be truncated to 300 bytes. (Bug#28706)

  • Accessing the results from a large query when using data compression in the connection will fail to return all the data. (Bug#28204)

  • Fixed problem where MySqlConnection.BeginTransaction checked the drivers status var before checking if the connection was open. The result was that the driver could report an invalid condition on a previously opened connection.

  • Fixed problem where we were not closing prepared statement handles when commands are disposed. This could lead to using up all prepared statement handles on the server.

  • Fixed the database schema collection so that it works on servers that are not properly respecting the lower_case_table_names setting.

  • Fixed problem where any attempt to not read all the records returned from a select where each row of the select is greater than 1024 bytes would hang the driver.

  • Fixed problem where a command timing out just after it actually finished would cause an exception to be thrown on the command timeout thread which would then be seen as an unhandled exception.

  • Fixed some serious issues with command timeout and cancel that could present as exceptions about thread ownership. The issue was that not all queries cancel the same. Some produce resultsets while others don't. ExecuteReader had to be changed to check for this.

C.4.27. Changes in MySQL Connector/NET 5.0.7 (18 May 2007)

Bugs fixed:

  • Running the statement SHOW PROCESSLIST would return columns as byte arrays instead of native columns. (Bug#28448)

  • Building a connection string within a tight loop would show slow performance. (Bug#28167)

  • Using logging (with the logging=true parameter to the connection string) would not generate a log file. (Bug#27765)

  • The UNSIGNED flag for parameters in a stored procedure would be ignored when using MySqlCommandBuilder to obtain the parameter information. (Bug#27679)

  • Using MySQLDataAdapter.FillSchema() on a stored procedure would raise an exception: Invalid attempt to access a field before calling Read(). (Bug#27668)

  • If you close an open connection with an active transaction, the transaction is not automatically rolled back. (Bug#27289)

  • When cloning an open MySqlClient.MySqlConnection with the Persist Security Info=False option set, the cloned connection is not usable because the security information has not been cloned. (Bug#27269)

  • Enlisting a null transaction would affect the current connection object, such that further enlistment operations to the transaction are not possible. (Bug#26754)

  • Attempting to change the Connection Protocol property within a PropertyGrid control would raise an exception. (Bug#26472)

  • The characterset property would not be identified during a connection (also affected Visual Studion Plugin). (Bug#26147, Bug#27240)

  • The CreateFormat column of the DataTypes collection did not contain a format specification for creating a new column type. (Bug#25947)

  • DATETIME fields from versions of MySQL bgefore 4.1 would be incorrectly parsed, resulting in a exception. (Bug#23342)

C.4.28. Changes in MySQL Connector/NET 5.0.6 (22 March 2007)

Bugs fixed:

  • Publisher listed in "Add/Remove Programs" is not consistent with other MySQL products. (Bug#27253)

  • DESCRIBE .... SQL statement returns byte arrays rather than data on MySQL versions older than 4.1.15. (Bug#27221)

  • cmd.Parameters.RemoveAt("Id") will cause an error if the last item is requested. (Bug#27187)

  • MySqlParameterCollection and parameters added with Insert method can not be retrieved later using ParameterName. (Bug#27135)

  • Exception thrown when using large values in UInt64 parameters. (Bug#27093)

  • MySQL Visual Studio Plugin 1.1.2 does not work with Connector/Net 5.0.5. (Bug#26960)

C.4.29. Changes in MySQL Connector/NET 5.0.5 (07 March 2007)

Functionality added or changed:

  • Reverted behavior that required parameter names to start with the parameter marker. We apologize for this back and forth but we mistakenly changed the behavior to not match what SqlClient supports. We now support using either syntax for adding parameters however we also respond exactly like SqlClient in that if you ask for the index of a parameter using a syntax different from when you added the parameter, the result will be -1.

  • Assembly now properly appears in the Visual Studio 2005 Add/Remove Reference dialog.

  • Fixed problem that prevented use of SchemaOnly or SingleRow command behaviors with stored procedures or prepared statements.

  • Added MySqlParameterCollection.AddWithValue and marked the Add(name, value) method as obsolete.

  • Return parameters created with DeriveParameters now have the name RETURN_VALUE.

  • Fixed problem with parameter name hashing where the hashes were not getting updated when parameters were removed from the collection.

  • Fixed problem with calling stored functions when a return parameter was not given.

  • Added Use Procedure Bodies connection string option to allow calling procedures without using procedure metadata.

Bugs fixed:

  • MySqlConnection.GetSchema fails with NullReferenceException for Foreign Keys. (Bug#26660)

  • Connector/NET would fail to install under Windows Vista. (Bug#26430)

  • Opening a connection would be slow due to host name lookup. (Bug#26152)

  • Incorrect values/formats would be applied when the OldSyntax connection string option was used. (Bug#25950)

  • Registry would be incorrectly populated with installation locations. (Bug#25928)

  • Times with negative values would be returned incorrectly. (Bug#25912)

  • Returned data types of a DataTypes collection do not contain the right correctl CLR Datatype. (Bug#25907)

  • GetSchema and DataTypes would throw an exception due to an incorrect table name. (Bug#25906)

  • MySqlConnection throws an exception when connecting to MySQL v4.1.7. (Bug#25726)

  • SELECT did not work correctly when using a WHERE clause containing a UTF-8 string. (Bug#25651)

  • When closing and then re-opening a connection to a database, the character set specification is lost. (Bug#25614)

  • Filling a table schema through a stored procedure triggers a runtime error. (Bug#25609)

  • BINARY and VARBINARY columns would be returned as a string, not binary, datatype. (Bug#25605)

  • A critical ConnectionPool error would result in repeated System.NullReferenceException. (Bug#25603)

  • The UpdateRowSource.FirstReturnedRecord method does not work. (Bug#25569)

  • When connecting to a MySQL Server earlier than version 4.1, the connection would hang when reading data. (Bug#25458)

  • Using ExecuteScalar() with more than one query, where one query fails, will hang the connection. (Bug#25443)

  • When a MySqlConversionException is raised on a remote object, the client application would receive a SerializationException instead. (Bug#24957)

  • When connecting to a server, the return code from the connection could be zero, even though the host name was incorrect. (Bug#24802)

  • High CPU utilization would be experienced when there is no idle connection waiting when using pooled connections through MySqlPool.GetConnection. (Bug#24373)

  • Connector/NET would not compile properly when used with Mono 1.2. (Bug#24263)

  • Applications would crash when calling with CommandType set to StoredProcedure.

C.4.30. Changes in MySQL Connector/NET 5.0.4 (Not released)

This is a new Beta development release, fixing recently discovered bugs.

C.4.31. Changes in MySQL Connector/NET 5.0.3 (05 January 2007)

Functionality added or changed:

  • Usage Advisor has been implemented. The Usage Advisor checks your queries and will report if you are using the connection inefficiently.

  • PerfMon hooks have been added to monitor the stored procedure cache hits and misses.

  • The MySqlCommand object now supports asynchronous query methods. This is implemented useg the BeginExecuteNonQuery and EndExecuteNonQuery methods.

  • Metadata from storaed procedures and stored function execution are cached.

  • The CommandBuilder.DeriveParameters function has been updated to the procedure cache.

  • The ViewColumns GetSchema collection has been updated.

  • Improved speed and performance by re-architecting certain sections of the code.

  • Support for the embedded server and client library have been removed from this release. Support will be added back to a later release.

  • The ShapZipLib library has been replaced with the deflate support provided within .NET 2.0.

  • SSL support has been updated.

Bugs fixed:

  • Additional text added to error message (Bug#25178)

  • An exception would be raised, or the process would hang, if SELECT privileges on a database were not granted and a stored procedure was used. (Bug#25033)

  • When adding parameter objects to a command object, if the parameter direction is set to ReturnValue before the parameter is added to the command object then when the command is executed it throws an error. (Bug#25013)

  • Using Driver.IsTooOld() would return the wrong value. (Bug#24661)

  • When using a DbNull.Value as the value for a parameter value, and then later setting a specific value type, the command would fail with an exception because the wrong type was implied from the DbNull.Value. (Bug#24565)

  • Stored procedure executions are not thread safe. (Bug#23905)

  • Deleting a connection to a disconnected server when using the Visual Studio Plugin would cause an assertion failure. (Bug#23687)

  • Nested transactions (which are unsupported)do not raise an error or warning. (Bug#22400)

C.4.32. Changes in MySQL Connector/NET 5.0.2 (06 November 2006)

Functionality added or changed:

  • An Ignore Prepare option has been added to the connection string options. If enabled, prepared statements will be disabled application-wide. The default for this option is true.

  • Implemented a stored procedure cache. By default, the connector caches the metadata for the last 25 procedures that are seen. You can change the numbver of procedures that are cacheds by using the procedure cache connection string.

  • Important change: Due to a number of issues with the use of server-side prepared statements, Connector/NET 5.0.2 has disabled their use by default. The disabling of server-side prepared statements does not affect the operation of the connector in any way.

    To enable server-side prepared statements you must add the following configuration property to your connector string properties:

    ignore prepare=false

    The default value of this property is true.

Bugs fixed:

  • One system where IPv6 was enabled, Connector/NET would incorrectly resolve host names. (Bug#23758)

  • Column names with accented characters were not parsed properly causing malformed column names in result sets. (Bug#23657)

  • An exception would be thrown when calling GetSchemaTable and fields was null. (Bug#23538)

  • A System.FormatException exception would be raised when invoking a stored procedure with an ENUM input parameter. (Bug#23268)

  • During installation, an antivirus error message would be raised (indicating a malicious script problem). (Bug#23245)

  • Creating a connection through the Server Explorer when using the Visual Studio Plugin would fail. The installer for the Visual Studio Plugin has been updated to ensure that Connector/NET 5.0.2 must be installed. (Bug#23071)

  • Using Windows Vista (RC2) as a nonprivileged user would raise a Registry key 'Global' access denied. (Bug#22882)

  • Within Mono, using the PreparedStatement interface could result in an error due to a BitArray copying error. (Bug#18186)

  • Connector/NET did not work as a data source for the SqlDataSource object used by ASP.NET 2.0. (Bug#16126)

C.4.33. Changes in MySQL Connector/NET 5.0.1 (01 October 2006)

Bugs fixed:

  • Connector/NET on a Tukish operating system, may fail to execute certain SQL statements correctly. (Bug#22452)

  • Starting a transaction on a connection created by MySql.Data.MySqlClient.MySqlClientFactory, using BeginTransaction without specifying an isolation level, causes the SQL statement to fail with a syntax error. (Bug#22042)

  • The MySqlexception class is now derived from the DbException class. (Bug#21874)

  • The # would not be accepted within column/table names, even though it was valid. (Bug#21521)

  • You can now install the Connector/NET MSI package from the command line using the /passive, /quiet, /q options. (Bug#19994)

  • Submitting an empty string to a command object through prepare raises an System.IndexOutOfRangeException, rather than a Connector/Net exception. (Bug#18391)

  • Using ExecuteScalar with a datetime field, where the value of the field is "0000-00-00 00:00:00", a MySqlConversionException exception would be raised. (Bug#11991)

  • An MySql.Data.Types.MySqlConversionException would be raised when trying to update a row that contained a date field, where the date field contained a zero value (0000-00-00 00:00:00). (Bug#9619)

  • Executing multiple queries as part of a transaction returns There is already an openDataReader associated with this Connection which must be closed first. (Bug#7248)

  • Incorrect field/data lengths could be returned for VARCHAR UTF8 columns. Bug (#14592)

C.4.34. Changes in MySQL Connector/NET 5.0.0 (08 August 2006)

Functionality added or changed:

  • Replaced use of ICSharpCode with .NET 2.0 internal deflate support.

  • Refactored test suite to test all protocols in a single pass.

  • Added usage advisor warnings for requesting column values by the wrong type.

  • Reimplemented PacketReader/PacketWriter support into MySqlStream class.

  • Reworked connection string classes to be simpler and faster.

  • Added procedure metadata caching.

  • Added internal implemention of SHA1 so we don't have to distribute the OpenNetCF on mobile devices.

  • Implemented MySqlClientFactory class.

  • Added perfmon hooks for stored procedure cache hits and misses.

  • Implemented classes and interfaces for ADO.Net 2.0 support.

  • Added Async query methods.

  • Implemented Usage Advisor.

  • Completely refactored how column values are handled to avoid boxing in some cases.

  • Implemented MySqlConnectionBuilder class.

Bugs fixed:

  • CommandText: Question mark in comment line is being parsed as a parameter. (Bug#6214)

C.4.35. Changes in MySQL Connector/NET 1.0.11 (Not yet released)

Bugs fixed:

  • Attempting to utilize MySQL Connector .Net version 1.0.10 throws a fatal exception under Mono when pooling is enabled. (Bug#33682)

  • Setting the size of a string parameter after the value could cause an exception. (Bug#32094)

  • Creation of parameter objects with noninput direction using a constructor would fail. This was cause by some old legacy code preventing their use. (Bug#32093)

  • Memory usage could increase and decrease significantly when updating or inserting a large number of rows. (Bug#31090)

  • Commands executed from within the state change handeler would fail with a NULL exception. (Bug#30964)

  • Extracting data through XML functions within a query returns the data as System.Byte[]. This was due to Connector/NET incorrectly identifying BLOB fields as binary, rather than text. (Bug#30233)

  • Using compression in the MySQL connection with Connector/NET would be slower than using native (uncompressed) communication. (Bug#27865)

  • Changing the connection string of a connection to one that changes the parameter marker after the connection had been assigned to a command but before the connection is opened could cause parameters to not be found. (Bug#13991)

C.4.36. Changes in MySQL Connector/NET 1.0.10 (24 August 2007)

Bugs fixed:

  • An incorrect ConstraintException could be raised on an INSERT when adding rows to a table with a multiple-column unique key index. (Bug#30204)

  • The availability of a MySQL server would not be reset when using pooled connections (pooling=true). This would lead to the server being reported as unavailable, even if the server become available while the application was still running. (Bug#29409)

  • Publisher listed in "Add/Remove Programs" is not consistent with other MySQL products. (Bug#27253)

  • MySqlParameterCollection and parameters added with Insert method can not be retrieved later using ParameterName. (Bug#27135)

  • BINARY and VARBINARY columns would be returned as a string, not binary, datatype. (Bug#25605)

  • A critical ConnectionPool error would result in repeated System.NullReferenceException. (Bug#25603)

  • When a MySqlConversionException is raised on a remote object, the client application would receive a SerializationException instead. (Bug#24957)

  • High CPU utilization would be experienced when there is no idle connection waiting when using pooled connections through MySqlPool.GetConnection. (Bug#24373)

C.4.37. Changes in MySQL Connector/NET 1.0.9 (02 February 2007)

Functionality added or changed:

  • The ICSharpCode ZipLib is no longer used by the Connector, and is no longer distributed with it.

  • Important change: Binaries for .NET 1.0 are no longer supplied with this release. If you need support for .NET 1.0, you must build from source.

  • Improved CommandBuilder.DeriveParameters to first try and use the procedure cache before querying for the stored procedure metadata. Return parameters created with DeriveParameters now have the name RETURN_VALUE.

  • An Ignore Prepare option has been added to the connection string options. If enabled, prepared statements will be disabled application-wide. The default for this option is true.

  • Implemented a stored procedure cache. By default, the connector caches the metadata for the last 25 procedures that are seen. You can change the numbver of procedures that are cacheds by using the procedure cache connection string.

  • Important change: Due to a number of issues with the use of server-side prepared statements, Connector/NET 5.0.2 has disabled their use by default. The disabling of server-side prepared statements does not affect the operation of the connector in any way.

    To enable server-side prepared statements you must add the following configuration property to your connector string properties:

    ignore prepare=false

    The default value of this property is true.

Bugs fixed:

  • Times with negative values would be returned incorrectly. (Bug#25912)

  • MySqlConnection throws a NullReferenceException and ArgumentNullException when connecting to MySQL v4.1.7. (Bug#25726)

  • SELECT did not work correctly when using a WHERE clause containing a UTF-8 string. (Bug#25651)

  • When closing and then re-opening a connection to a database, the character set specification is lost. (Bug#25614)

  • Trying to fill a table schema through a stored procedure triggers a runtime error. (Bug#25609)

  • Using ExecuteScalar() with more than one query, where one query fails, will hang the connection. (Bug#25443)

  • Additional text added to error message. (Bug#25178)

  • When adding parameter objects to a command object, if the parameter direction is set to ReturnValue before the parameter is added to the command object then when the command is executed it throws an error. (Bug#25013)

  • When connecting to a server, the return code from the connection could be zero, even though the host name was incorrect. (Bug#24802)

  • Using Driver.IsTooOld() would return the wrong value. (Bug#24661)

  • When using a DbNull.Value as the value for a parameter value, and then later setting a specific value type, the command would fail with an exception because the wrong type was implied from the DbNull.Value. (Bug#24565)

  • Stored procedure executions are not thread safe. (Bug#23905)

  • The CommandBuilder would mistakenly add insert parameters for a table column with auto incrementation enabled. (Bug#23862)

  • One system where IPv6 was enabled, Connector/NET would incorrectly resolve host names. (Bug#23758)

  • Nested transactions do not raise an error or warning. (Bug#22400)

  • An System.OverflowException would be raised when accessing a varchar field over 255 bytes. Bug (#23749)

  • Within Mono, using the PreparedStatement interface could result in an error due to a BitArray copying error. (Bug 18186)

C.4.38. Changes in MySQL Connector/NET 1.0.8 (20 October 2006)

Functionality added or changed:

  • Stored procedures are now cached.

  • The method for retrieving stored procedured metadata has been changed so that users without SELECT privileges on the mysql.proc table can use a stored procedure.

Bugs fixed:

  • Connector/NET on a Tukish operating system, may fail to execute certain SQL statements correctly. (Bug#22452)

  • The # would not be accepted within column/table names, even though it was valid. (Bug#21521)

  • Calling Close on a connection after calling a stored procedure would trigger a NullReferenceException. (Bug#20581)

  • You can now install the Connector/NET MSI package from the command line using the /passive, /quiet, /q options. (Bug#19994)

  • The DiscoverParameters function would fail when a stored procedure used a NUMERIC parameter type. (Bug#19515)

  • When running a query that included a date comparison, a DateReader error would be raised. (Bug#19481)

  • IDataRecord.GetString would raise NullPointerException for null values in returned rows. Method now throws SqlNullValueException. (Bug#19294)

  • Parameter substitution in queries where the order of parameters and table fields did not match would substitute incorrect values. (Bug#19261)

  • Submitting an empty string to a command object through prepare raises an System.IndexOutOfRangeException, rather than a Connector/Net exception. (Bug#18391)

  • An exception would be raised when using an output parameter to a System.String value. (Bug#17814)

  • CHAR type added to MySqlDbType. (Bug#17749)

  • A SELECT query on a table with a date with a value of '0000-00-00' would hang the application. (Bug#17736)

  • The CommandBuilder ignored Unsigned flag at Parameter creation. (Bug#17375)

  • When working with multiple threads, character set initialization would generate errors. (Bug#17106)

  • When using an unsigned 64-bit integer in a stored procedure, the unsigned bit would be lost stored. (Bug#16934)

  • DataReader would show the value of the previous row (or last row with nonnull data) if the current row contained a datetime field with a null value. (Bug#16884)

  • Unsigned data types were not properly supported. (Bug#16788)

  • The connection string parser did not allow single or double quotes in the password. (Bug#16659)

  • The MySqlDateTime class did not contain constructors. (Bug#15112)

  • Called MySqlCommandBuilder.DeriveParameters for a stored procedure that has no paramers would cause an application crash. (Bug#15077)

  • Using ExecuteScalar with a datetime field, where the value of the field is "0000-00-00 00:00:00", a MySqlConversionException exception would be raised. (Bug#11991)

  • An MySql.Data.Types.MySqlConversionException would be raised when trying to update a row that contained a date field, where the date field contained a zero value (0000-00-00 00:00:00). (Bug#9619)

  • When using MySqlDataAdapter, connections to a MySQL server may remain open and active, even though the use of the connection has been completed and the data received. (Bug#8131)

  • Executing multiple queries as part of a transaction returns There is already an openDataReader associated with this Connection which must be closed first. (Bug#7248)

  • Incorrect field/data lengths could be returned for VARCHAR UTF8 columns. Bug (#14592)

C.4.39. Changes in MySQL Connector/NET 1.0.7 (21 November 2005)

Bugs fixed:

  • Unsigned tinyint (NET byte) would lead to and incorrectly determined parameter type from the parameter value. (Bug#18570)

  • A #42000Query was empty exception occurred when executing a query built with MySqlCommandBuilder, if the query string ended with a semicolon. (Bug#14631)

  • The parameter collection object's Add() method added parameters to the list without first checking to see whether they already existed. Now it updates the value of the existing parameter object if it exists. (Bug#13927)

  • Added support for the cp932 character set. (Bug#13806)

  • Calling a stored procedure where a parameter contained special characters (such as '@') would produce an exception. Note that ANSI_QUOTES had to be enabled to make this possible. (Bug#13753)

  • The Ping() method did not update the State property of the Connection object. (Bug#13658)

  • Implemented the MySqlCommandBuilder.DeriveParameters method that is used to discover the parameters for a stored procedure. (Bug#13632)

  • A statement that contained multiple references to the same parameter could not be prepared. (Bug#13541)

C.4.40. Changes in MySQL Connector/NET 1.0.6 (03 October 2005)

Bugs fixed:

  • Connector/NET 1.0.5 could not connect on Mono. (Bug#13345)

  • Serializing a parameter failed if the first value passed in was NULL. (Bug#13276)

  • Field names that contained the following characters caused errors: ()%<>/ (Bug#13036)

  • The nant build sequence had problems. (Bug#12978)

  • The Connector/NET 1.0.5 installer would not install alongside Connector/NET 1.0.4. (Bug#12835)

C.4.41. Changes in MySQL Connector/NET 1.0.5 (29 August 2005)

Bugs fixed:

  • Connector/NET could not connect to MySQL 4.1.14. (Bug#12771)

  • With multiple hosts in the connection string, Connector/NET would not connect to the last host in the list. (Bug#12628)

  • The ConnectionString property could not be set when a MySqlConnection object was added with the designer. (Bug#12551, Bug#8724)

  • The cp1250 character set was not supported. (Bug#11621)

  • A call to a stored procedure caused an exception if the stored procedure had no parameters. (Bug#11542)

  • Certain malformed queries would trigger a Connection must be valid and open error message. (Bug#11490)

  • Trying to use a stored procedure when Connection.Database was not populated generated an exception. (Bug#11450)

  • Connector/NET interpreted the new decimal data type as a byte array. (Bug#11294)

  • Added support to call a stored function from Connector/NET. (Bug#10644)

  • Connection could fail when .NET thread pool had no available worker threads. (Bug#10637)

  • Calling MySqlConnection.clone when a connection string had not yet been set on the original connection would generate an error. (Bug#10281)

  • Decimal parameters caused syntax errors. (Bug#10152, Bug#11550, Bug#10486)

  • Parameters were not recognized when they were separated by linefeeds. (Bug#9722)

  • The MySqlCommandBuilder class could not handle queries that referenced tables in a database other than the default database. (Bug#8382)

  • Trying to read a TIMESTAMP column generated an exception. (Bug#7951)

  • Connector/NET could not work properly with certain regional settings. (WL#8228)

C.4.42. Changes in MySQL Connector/NET 1.0.4 (20 January 2005)

Bugs fixed:

  • MySqlReader.GetInt32 throws exception if column is unsigned. (Bug#7755)

  • Quote character \222 not quoted in EscapeString. (Bug#7724)

  • GetBytes is working no more. (Bug#7704)

  • MySqlDataReader.GetString(index) returns non-Null value when field is Null. (Bug#7612)

  • Clone method bug in MySqlCommand. (Bug#7478)

  • Problem with Multiple resultsets. (Bug#7436)

  • MySqlAdapter.Fill method throws error message Non-negative number required. (Bug#7345)

  • MySqlCommand.Connection returns an IDbConnection. (Bug#7258)

  • Calling prepare causing exception. (Bug#7243)

  • Fixed problem with shared memory connections.

  • Added or filled out several more topics in the API reference documentation.

  • Fixed another small problem with prepared statements.

  • Fixed problem that causes named pipes to not work with some blob functionality.

C.4.43. Changes in MySQL Connector/NET 1.0.3 (12 October 2004 gamma)

Bugs fixed:

  • Invalid query string when using inout parameters (Bug#7133)

  • Inserting DateTime causes System.InvalidCastException to be thrown. (Bug#7132)

  • MySqlDateTime in Datatables sorting by Text, not Date. (Bug#7032)

  • Exception stack trace lost when re-throwing exceptions. (Bug#6983)

  • Errors in parsing stored procedure parameters. (Bug#6902)

  • InvalidCast when using DATE_ADD-function. (Bug#6879)

  • Int64 Support in MySqlCommand Parameters. (Bug#6863)

  • Test suite fails with MySQL 4.0 because of case sensitivity of table names. (Bug#6831)

  • MySqlDataReader.GetChar(int i) throws IndexOutOfRange exception. (Bug#6770)

  • Integer "out" parameter from stored procedure returned as string. (Bug#6668)

  • An Open Connection has been Closed by the Host System. (Bug#6634)

  • Fixed Invalid character set index: 200. (Bug#6547)

  • Connections now do not have to give a database on the connection string.

  • Installer now includes options to install into GAC and create Start Menu items.

  • Fixed major problem with detecting null values when using prepared statements.

  • Fixed problem where multiple resultsets having different numbers of columns would cause a problem.

  • Added ServerThread property to MySqlConnection to expose server thread id.

  • Added Ping method to MySqlConnection.

  • Changed the name of the test suite to MySql.Data.Tests.dll.

  • Now SHOW COLLATION is used upon connection to retrieve the full list of charset ids.

  • Made MySQL the default named pipe name.

C.4.44. Changes in MySQL Connector/NET 1.0.2 (15 November 2004 gamma)

Bugs fixed:

  • Fixed Objects not being disposed (Bug#6649)

  • Fixed Charset-map for UCS-2 (Bug#6541)

  • Fixed Zero date "0000-00-00" is returned wrong when filling Dataset (Bug#6429)

  • Fixed double type handling in MySqlParameter(string parameterName, object value) (Bug#6428)

  • Fixed Installation directory ignored using custom installation (Bug#6329)

  • Fixed #HY000 Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8_general_ (Bug#6322)

  • Added the TableEditor CS and VB sample

  • Added charset connection string option

  • Fixed problem with MySqlBinary where string values could not be used to update extended text columns

  • Provider is now using character set specified by server as default

  • Updated the installer to include the new samples

  • Fixed problem where setting command text leaves the command in a prepared state

  • Fixed Long inserts take very long time (Bu #5453)

  • Fixed problem where calling stored procedures might cause an "Illegal mix of collations" problem.

C.4.45. Changes in MySQL Connector/NET 1.0.1 (27 October 2004 beta)

Bugs fixed:

  • Fixed IndexOutOfBounds when reading BLOB with DataReader with GetString(index) (Bug#6230)

  • Fixed GetBoolean returns wrong values (Bug#6227)

  • Fixed Method TokenizeSql() uses only a limited set of valid characters for parameters (Bug#6217)

  • Fixed NET Connector source missing resx files (Bug#6216)

  • Fixed System.OverflowException when using YEAR datatype (Bug#6036)

  • Fixed MySqlDateTime sets IsZero property on all subseq.records after first zero found (Bug#6006)

  • Fixed serializing of floating point parameters (double, numeric, single, decimal) (Bug#5900)

  • Fixed missing Reference in DbType setter (Bug#5897)

  • Fixed Parsing the ';' char (Bug#5876)

  • Fixed DBNull Values causing problems with retrieving/updating queries. (Bug#5798)

  • IsNullable error (Bug#5796)

  • Fixed problem where MySqlParameterCollection.Add() would throw unclear exception when given a null value (Bug#5621)

  • Fixed construtor initialize problems in MySqlCommand() (Bug#5613)

  • Fixed Yet Another "object reference not set to an instance of an object" (Bug#5496)

  • Fixed Can't display Chinese correctly (Bug#5288)

  • Fixed MySqlDataReader and 'show tables from ...' behavior (Bug#5256)

  • Fixed problem in PacketReader where it could try to allocate the wrong buffer size in EnsureCapacity

  • Fixed problem where using old syntax while using the interfaces caused problems

  • Fixed Bug#5458 Calling GetChars on a longtext column throws an exception

  • Added test case for resetting the command text on a prepared command

  • Fixed Bug#5388 DataReader reports all rows as NULL if one row is NULL

  • Fixed problem where connection lifetime on the connect string was not being respected

  • Fixed Bug#5602 Possible bug in MySqlParameter(string, object) constructor

  • Field buffers being reused to decrease memory allocations and increase speed

  • Fixed Bug#5392 MySqlCommand sees "?" as parameters in string literals

  • Added Aggregate function test (wasn't really a bug)

  • Using PacketWriter instead of Packet for writing to streams

  • Implemented SequentialAccess

  • Fixed problem with ConnectionInternal where a key might be added more than once

  • Fixed Russian character support as well

  • Fixed Bug#5474 cannot run a stored procedure populating mysqlcommand.parameters

  • Fixed problem where connector was not issuing a CMD_QUIT before closing the socket

  • Fixed problem where Min Pool Size was not being respected

  • Refactored compression code into CompressedStream to clean up NativeDriver

  • CP1252 is now used for Latin1 only when the server is 4.1.2 and later

  • Fixed Bug#5469 Setting DbType throws NullReferenceException

  • Virtualized driver subsystem so future releases could easily support client or embedded server support

C.4.46. Changes in MySQL Connector/NET 1.0.0 (01 September 2004)

Bugs fixed:

  • Thai encoding not correctly supported. (Bug#3889)

  • Bumped version number to 1.0.0 for beta 1 release.

  • Removed all of the XML comment warnings.

  • Added COPYING.rtf file for use in installer.

  • Updated many of the test cases.

  • Fixed problem with using compression.

  • Removed some last references to ByteFX.

C.4.47. Changes in MySQL Connector/NET Version 0.9.0 (30 August 2004)

  • Added test fixture for prepared statements.

  • All type classes now implement a SerializeBinary method for sending their data to a PacketWriter.

  • Added PacketWriter class that will enable future low-memory large object handling.

  • Fixed many small bugs in running prepared statements and stored procedures.

  • Changed command so that an exception will not be thrown in executing a stored procedure with parameters in old syntax mode.

  • SingleRow behavior now working right even with limit.

  • GetBytes now only works on binary columns.

  • Logger now truncates long sql commands so blob columns do not blow out our log.

  • Host and database now have a default value of "" unless otherwise set.

  • Connection Timeout seems to be ignored. (Bug#5214)

  • Added test case for bug# 5051: GetSchema not working correctly.

  • Fixed problem where GetSchema would return false for IsUnique when the column is key.

  • MySqlDataReader GetXXX methods now using the field level MySqlValue object and not performing conversions.

  • DataReader returning NULL for time column. (Bug#5097)

  • Added test case for LOAD DATA LOCAL INFILE.

  • Added replacetext custom nant task.

  • Added CommandBuilderTest fixture.

  • Added Last One Wins feature to CommandBuilder.

  • Fixed persist security info case problem.

  • Fixed GetBool so that 1, true, "true", and "yes" all count as true.

  • Make parameter mark configurable.

  • Added the "old syntax" connection string parameter to allow use of @ parameter marker.

  • MySqlCommandBuilder. (Bug#4658)

  • ByteFX.MySqlClient caches passwords if Persist Security Info is false. (Bug#4864)

  • Updated license banner in all source files to include FLOSS exception.

  • Added new .Types namespace and implementations for most current MySql types.

  • Added MySqlField41 as a subclass of MySqlField.

  • Changed many classes to now use the new .Types types.

  • Changed type enum int to Int32, short to Int16, and bigint to Int64.

  • Added dummy types UInt16, UInt32, and UInt64 to allow an unsigned parameter to be made.

  • Connections are now reset when they are pulled from the connection pool.

  • Refactored auth code in driver so it can be used for both auth and reset.

  • Added UserReset test in PoolingTests.cs.

  • Connections are now reset using COM_CHANGE_USER when pulled from the pool.

  • Implemented SingleResultSet behavior.

  • Implemented support of unicode.

  • Added char set mappings for utf-8 and ucs-2.

  • Time fields overflow using bytefx .net mysql driver (Bug#4520)

  • Modified time test in data type test fixture to check for time spans where hours > 24.

  • Wrong string with backslash escaping in ByteFx.Data.MySqlClient.MySqlParameter. (Bug#4505)

  • Added code to Parameter test case TestQuoting to test for backslashes.

  • MySqlCommandBuilder fails with multi-word column names. (Bug#4486)

  • Fixed bug in TokenizeSql where underscore would terminate character capture in parameter name.

  • Added test case for spaces in column names.

  • MySqlDataReader.GetBytes do not work correctly. (Bug#4324)

  • Added GetBytes() test case to DataReader test fixture.

  • Now reading all server variables in InternalConnection.Configure into Hashtable.

  • Now using string[] for index map in CharSetMap.

  • Added CRInSQL test case for carriage returns in SQL.

  • Setting maxPacketSize to default value in Driver.ctor.

  • Setting MySqlDbType on a parameter doesn't set generic type. (Bug#4442)

  • Removed obsolete data types Long and LongLong.

  • Overflow exception thrown when using "use pipe" on connection string. (Bug#4071)

  • Changed "use pipe" keyword to "pipe name" or just "pipe".

  • Allow reading multiple resultsets from a single query.

  • Added flags attribute to ServerStatusFlags enum.

  • Changed name of ServerStatus enum to ServerStatusFlags.

  • Inserted data row doesn't update properly.

  • Error processing show create table. (Bug#4074)

  • Change Packet.ReadLenInteger to ReadPackedLong and added packet.ReadPackedInteger that always reads integers packed with 2,3,4.

  • Added syntax.cs test fixture to test various SQL syntax bugs.

  • Improper handling of time values. Now time value of 00:00:00 is not treated as null. (Bug#4149)

  • Moved all test suite files into TestSuite folder.

  • Fixed bug where null column would move the result packet pointer backward.

  • Added new nant build script.

  • Clear tablename so it will be regen'ed properly during the next GenerateSchema. (Bug#3917)

  • GetValues was always returning zero and was also always trying to copy all fields rather than respecting the size of the array passed in. (Bug#3915)

  • Implemented shared memory access protocol.

  • Implemented prepared statements for MySQL 4.1.

  • Implemented stored procedures for MySQL 5.0.

  • Renamed MySqlInternalConnection to InternalConnection.

  • SQL is now parsed as chars, fixes problems with other languages.

  • Added logging and allow batch connection string options.

  • RowUpdating event not set when setting the DataAdapter property. (Bug#3888)

  • Fixed bug in char set mapping.

  • Implemented 4.1 authentication.

  • Improved open/auth code in driver.

  • Improved how connection bits are set during connection.

  • Database name is now passed to server during initial handshake.

  • Changed namespace for client to MySql.Data.MySqlClient.

  • Changed assembly name of client to MySql.Data.dll.

  • Changed license text in all source files to GPL.

  • Added the MySqlClient.build Nant file.

  • Removed the mono batch files.

  • Moved some of the unused files into notused folder so nant build file can use wildcards.

  • Implemented shared memory access.

  • Major revamp in code structure.

  • Prepared statements now working for MySql 4.1.1 and later.

  • Finished implementing auth for 4.0, 4.1.0, and 4.1.1.

  • Changed namespace from MySQL.Data.MySQLClient back to MySql.Data.MySqlClient.

  • Fixed bug in CharSetMapping where it was trying to use text names as ints.

  • Changed namespace to MySQL.Data.MySQLClient.

  • Integrated auth changes from UC2004.

  • Fixed bug where calling any of the GetXXX methods on a datareader before or after reading data would not throw the appropriate exception (thanks Luca Morelli).

  • Added TimeSpan code in parameter.cs to properly serialize a timespan object to mysql time format (thanks Gianluca Colombo).

  • Added TimeStamp to parameter serialization code. Prevented DataAdatper updates from working right (thanks Michael King).

  • Fixed a misspelling in MySqlHelper.cs (thanks Patrick Kristiansen).

C.4.48. Changes in MySQL Connector/NET Version 0.76

  • Driver now using charset number given in handshake to create encoding.

  • Changed command editor to point to MySqlClient.Design.

  • Fixed bug in Version.isAtLeast.

  • Changed DBConnectionString to support changes done to MySqlConnectionString.

  • Removed SqlCommandEditor and DataAdapterPreviewDialog.

  • Using new long return values in many places.

  • Integrated new CompressedStream class.

  • Changed ConnectionString and added attributes to allow it to be used in MySqlClient.Design.

  • Changed packet.cs to support newer lengths in ReadLenInteger.

  • Changed other classes to use new properties and fields of MySqlConnectionString.

  • ConnectionInternal is now using PING to see whether the server is alive.

  • Moved toolbox bitmaps into resource folder.

  • Changed field.cs to allow values to come directly from row buffer.

  • Changed to use the new driver.Send syntax.

  • Using a new packet queueing system.

  • Started work handling the "broken" compression packet handling.

  • Fixed bug in StreamCreator where failure to connect to a host would continue to loop infinitly (thanks Kevin Casella).

  • Improved connectstring handling.

  • Moved designers into Pro product.

  • Removed some old commented out code from command.cs.

  • Fixed a problem with compression.

  • Fixed connection object where an exception throw prior to the connection opening would not leave the connection in the connecting state (thanks Chris Cline).

  • Added GUID support.

  • Fixed sequence out of order bug (thanks Mark Reay).

C.4.49. Changes in MySQL Connector/NET Version 0.75

  • Enum values now supported as parameter values (thanks Philipp Sumi).

  • Year datatype now supported.

  • Fixed compression.

  • Fixed bug where a parameter with a TimeSpan as the value would not serialize properly.

  • Fixed bug where default constructor would not set default connection string values.

  • Added some XML comments to some members.

  • Work to fix/improve compression handling.

  • Improved ConnectionString handling so that it better matches the standard set by SqlClient.

  • A MySqlException is now thrown if a user name is not included in the connection string.

  • Localhost is now used as the default if not specified on the connection string.

  • An exception is now thrown if an attempt is made to set the connection string while the connection is open.

  • Small changes to ConnectionString docs.

  • Removed MultiHostStream and MySqlStream. Replaced it with Common/StreamCreator.

  • Added support for Use Pipe connection string value.

  • Added Platform class for easier access to platform utility functions.

  • Fixed small pooling bug where new connection was not getting created after IsAlive fails.

  • Added Platform.cs and StreamCreator.cs.

  • Fixed Field.cs to properly handle 4.1 style timestamps.

  • Changed Common.Version to Common.DBVersion to avoid name conflict.

  • Fixed field.cs so that text columns return the right field type.

  • Added MySqlError class to provide some reference for error codes (thanks Geert Veenstra).

C.4.50. Changes in MySQL Connector/NET Version 0.74

  • Added Unix socket support (thanks Mohammad DAMT).

  • Only calling Thread.Sleep when no data is available.

  • Improved escaping of quote characters in parameter data.

  • Removed misleading comments from parameter.cs.

  • Fixed pooling bug.

  • Fixed ConnectionString editor dialog (thanks marco p (pomarc)).

  • UserId now supported in connection strings (thanks Jeff Neeley).

  • Attempting to create a parameter that is not input throws an exception (thanks Ryan Gregg).

  • Added much documentation.

  • Checked in new MultiHostStream capability. Big thanks to Dan Guisinger for this. he originally submitted the code and idea of supporting multiple machines on the connect string.

  • Added a lot of documentation.

  • Fixed speed issue with 0.73.

  • Changed to Thread.Sleep(0) in MySqlDataStream to help optimize the case where it doesn't need to wait (thanks Todd German).

  • Prepopulating the idlepools to MinPoolSize.

  • Fixed MySqlPool deadlock condition as well as stupid bug where CreateNewPooledConnection was not ever adding new connections to the pool. Also fixed MySqlStream.ReadBytes and ReadByte to not use TicksPerSecond which does not appear to always be right. (thanks Matthew J. Peddlesden)

  • Fix for precision and scale (thanks Matthew J. Peddlesden).

  • Added Thread.Sleep(1) to stream reading methods to be more cpu friendly (thanks Sean McGinnis).

  • Fixed problem where ExecuteReader would sometime return null (thanks Lloyd Dupont).

  • Fixed major bug with null field handling (thanks Naucki).

  • Enclosed queries for max_allowed_packet and characterset inside try catch (and set defaults).

  • Fixed problem where socket was not getting closed properly (thanks Steve!).

  • Fixed problem where ExecuteNonQuery was not always returning the right value.

  • Fixed InternalConnection to not use @@session.max_allowed_packet but use @@max_allowed_packet. (Thanks Miguel)

  • Added many new XML doc lines.

  • Fixed sql parsing to not send empty queries (thanks Rory).

  • Fixed problem where the reader was not unpeeking the packet on close.

  • Fixed problem where user variables were not being handled (thanks Sami Vaaraniemi).

  • Fixed loop checking in the MySqlPool (thanks Steve M. Brown)

  • Fixed ParameterCollection.Add method to match SqlClient (thanks Joshua Mouch).

  • Fixed ConnectionString parsing to handle no and yes for boolean and not lowercase values (thanks Naucki).

  • Added InternalConnection class, changes to pooling.

  • Implemented Persist Security Info.

  • Added security.cs and version.cs to project

  • Fixed DateTime handling in Parameter.cs (thanks Burkhard Perkens-Golomb).

  • Fixed parameter serialization where some types would throw a cast exception.

  • Fixed DataReader to convert all returned values to prevent casting errors (thanks Keith Murray).

  • Added code to Command.ExecuteReader to return null if the initial SQL statement throws an exception (thanks Burkhard Perkens-Golomb).

  • Fixed ExecuteScalar bug introduced with restructure.

  • Restructure to allow for LOCAL DATA INFILE and better sequencing of packets.

  • Fixed several bugs related to restructure.

  • Early work done to support more secure passwords in Mysql 4.1. Old passwords in 4.1 not supported yet.

  • Parameters appearing after system parameters are now handled correctly (Adam M. (adammil)).

  • Strings can now be assigned directly to blob fields (Adam M.).

  • Fixed float parameters (thanks Pent).

  • Improved Parameter constructor and ParameterCollection.Add methods to better match SqlClient (thanks Joshua Mouch).

  • Corrected Connection.CreateCommand to return a MySqlCommand type.

  • Fixed connection string designer dialog box problem (thanks Abraham Guyt).

  • Fixed problem with sending commands not always reading the response packet (thanks Joshua Mouch).

  • Fixed parameter serialization where some blobs types were not being handled (thanks Sean McGinnis).

  • Removed spurious MessageBox.show from DataReader code (thanks Joshua Mouch).

  • Fixed a nasty bug in the split sql code (thanks everyone!).

C.4.51. Changes in MySQL Connector/NET Version 0.71

  • Fixed bug in MySqlStream where too much data could attempt to be read (thanks Peter Belbin)

  • Implemented HasRows (thanks Nash Pherson).

  • Fixed bug where tables with more than 252 columns cause an exception (thanks Joshua Kessler).

  • Fixed bug where SQL statements ending in ; would cause a problem (thanks Shane Krueger).

  • Fixed bug in driver where error messages were getting truncated by 1 character (thanks Shane Krueger).

  • Made MySqlException serializable (thanks Mathias Hasselmann).

C.4.52. Changes in MySQL Connector/NET Version 0.70

  • Updated some of the character code pages to be more accurate.

  • Fixed problem where readers could be opened on connections that had readers open.

  • Moved test to separate assembly MySqlClientTests.

  • Fixed stupid problem in driver with sequence out of order (Thanks Peter Belbin).

  • Added some pipe tests.

  • Increased default max pool size to 50.

  • Compiles with Mono 0-24.

  • Fixed connection and data reader dispose problems.

  • Added String datatype handling to parameter serialization.

  • Fixed sequence problem in driver that occurred after thrown exception (thanks Burkhard Perkens-Golomb).

  • Added support for CommandBehavior.SingleRow to DataReader.

  • Fixed command sql processing so quotes are better handled (thanks Theo Spears).

  • Fixed parsing of double, single, and decimal values to account for non-English separators. You still have to use the right syntax if you using hard coded sql, but if you use parameters the code will convert floating point types to use '.' appropriately internal both into the server and out.

  • Added MySqlStream class to simplify timeouts and driver coding.

  • Fixed DataReader so that it is closed properly when the associated connection is closed. [thanks smishra]

  • Made client more SqlClient compliant so that DataReaders have to be closed before the connection can be used to run another command.

  • Improved DBNull.Value handling in the fields.

  • Added several unit tests.

  • Fixed MySqlException base class.

  • Improved driver coding

  • Fixed bug where NextResult was returning false on the last resultset.

  • Added more tests for MySQL.

  • Improved casting problems by equating unsigned 32bit values to Int64 and unsigned 16bit values to Int32, and so forth.

  • Added new constructor for MySqlParameter for (name, type, size, srccol)

  • Fixed bug in MySqlDataReader where it didn't check for null fieldlist before returning field count.

  • Started adding MySqlClient unit tests (added MySqlClient/Tests folder and some test cases).

  • Fixed some things in Connection String handling.

  • Moved INIT_DB to MySqlPool. I may move it again, this is in preparation of the conference.

  • Fixed bug inside CommandBuilder that prevented inserts from happening properly.

  • Reworked some of the internals so that all three execute methods of Command worked properly.

  • Fixed many small bugs found during benchmarking.

  • The first cut of CoonectionPooling is working. "min pool size" and "max pool size" are respected.

  • Work to enable multiple resultsets to be returned.

  • Character sets are handled much more intelligently now. The driver queries MySQL at startup for the default character set. That character set is then used for conversions if that code page can be loaded. If not, then the default code page for the current OS is used.

  • Added code to save the inferred type in the name,value constructor of Parameter.

  • Also, inferred type if value of null parameter is changed using Value property.

  • Converted all files to use proper Camel case. MySQL is now MySql in all files. PgSQL is now PgSql.

  • Added attribute to PgSql code to prevent designer from trying to show.

  • Added MySQLDbType property to Parameter object and added proper conversion code to convert from DbType to MySQLDbType).

  • Removed unused ObjectToString method from MySQLParameter.cs.

  • Fixed Add(..) method in ParameterCollection so that it doesn't use Add(name, value) instead.

  • Fixed IndexOf and Contains in ParameterCollection to be aware that parameter names are now stored without @.

  • Fixed Command.ConvertSQLToBytes so it only allows characters that can be in MySQL variable names.

  • Fixed DataReader and Field so that blob fields read their data from Field.cs and GetBytes works right.

  • Added simple query builder editor to CommandText property of MySQLCommand.

  • Fixed CommandBuilder and Parameter serialization to account for Parameters not storing @ in their names.

  • Removed MySQLFieldType enum from Field.cs. Now using MySQLDbType enum.

  • Added Designer attribute to several classes to prevent designer view when using VS.Net.

  • Fixed Initial catalog typo in ConnectionString designer.

  • Removed 3 parameter constructor for MySQLParameter that conflicted with (name, type, value).

  • Changed MySQLParameter so paramName is now stored without leading @ (this fixed null inserts when using designer).

  • Changed TypeConverter for MySQLParameter to use the constructor with all properties.

C.4.53. Changes in MySQL Connector/NET Version 0.68

  • Fixed sequence issue in driver.

  • Added DbParametersEditor to make parameter editing more like SqlClient.

  • Fixed Command class so that parameters can be edited using the designer

  • Update connection string designer to support Use Compression flag.

  • Fixed string encoding so that European characters will work correctly.

  • Creating base classes to aid in building new data providers.

  • Added support for UID key in connection string.

  • Field, parameter, command now using DBNull.Value instead of null.

  • CommandBuilder using DBNull.Value.

  • CommandBuilder now builds insert command correctly when an auto_insert field is not present.

  • Field now uses typeof keyword to return System.Types (performance).

C.4.54. Changes in MySQL Connector/NET Version 0.65

  • MySQLCommandBuilder now implemented.

  • Transaction support now implemented (not all table types support this).

  • GetSchemaTable fixed to not use xsd (for Mono).

  • Driver is now Mono-compatible.

  • TIME data type now supported.

  • More work to improve Timestamp data type handling.

  • Changed signatures of all classes to match corresponding SqlClient classes.

C.4.55. Changes in MySQL Connector/NET Version 0.60

  • Protocol compression using SharpZipLib (www.icsharpcode.net).

  • Named pipes on Windows now working properly.

  • Work done to improve Timestamp data type handling.

  • Implemented IEnumerable on DataReader so DataGrid would work.

C.4.56. Changes in MySQL Connector/NET Version 0.50

  • Speed increased dramatically by removing bugging network sync code.

  • Driver no longer buffers rows of data (more ADO.Net compliant).

  • Conversion bugs related to TIMESTAMP and DATETIME fields fixed.

C.5. MySQL Visual Studio Plugin Change History

Note

As of Connector/NET 5.1.2 (14 June 2007), the Visual Studion Plugin is part of the main Connector/NET package. For the change history for the Visual Studio Plugin, see Section C.4, “MySQL Connector/NET Change History”.

C.5.1. Changes in MySQL Visual Studio Plugin 1.0.3 (Not yet released)

Bugs fixed:

  • Running queries based on a stored procedure would cause the data set designer to terminate. (Bugs #26364)

  • DataSet wizard would show all tables instead of only the tables available within the selected database. (Bugs #26348)

C.5.2. Changes in MySQL Visual Studio Plugin 1.0.2 (Not yet released)

Bugs fixed:

  • The Add Connection dialog of the Server Explorer would freeze when accessing databases with capitalized characters in their name. (Bug#24875)

  • Creating a connection through the Server Explorer when using the Visual Studio Plugin would fail. The installer for the Visual Studio Plugin has been updated to ensure that Connector/NET 5.0.2 must be installed. (Bug#23071)

C.5.3. Changes in MySQL Visual Studio Plugin 1.0.1 (4 October 2006)

This is a bug fix release to resolve an incompatibility issue with Connector/NET 5.0.1.

It is critical that this release only be used with Connector/NET 5.0.1. After installing Connector/NET 5.0.1, you will need to make a small change in your machine.config file. This file should be located at %win%\Microsoft.Net\Framework\v2.0.50727\CONFIG\machine.config (%win% should be the location of your Windows folder). Near the bottom of the file you will see a line like this:

<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient"
description=".Net Framework Data Provider for MySQL"
type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data"/>

It needs to be changed to be like this:

<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient"
description=".Net Framework Data Provider for MySQL"
type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data,
Version=5.0.1.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"/>
 

C.5.4. Changes in MySQL Visual Studio Plugin 1.0.0 (4 October 2006)

Bugs fixed:

  • Ability to work with MySQL objects (tables, views, stored procedures, etc) from within Server Explorer.

  • DDEX (Data Designer Extensibility) compatibility.

C.6. MySQL Connector/J Change History

C.6.1. Changes in MySQL Connector/J 5.1.x

C.6.1.1. Changes in MySQL Connector/J 5.1.8 (Not yet released)

Bugs fixed:

  • The result set returned by getIndexInfo() did not have the format defined in the JDBC API specifications. The fourth column, DATA_TYPE, of the result set should be of type BOOLEAN. Connector/J however returns CHAR. (Bug#44869)

  • The result set returned by getTypeInfo() did not have the format defined in the JDBC API specifications. The second column, DATA_TYPE, of the result set should be of type INTEGER. Connector/J however returns SMALLINT. (Bug#44868)

  • The DEFERRABILITY column in database metadata result sets was expected to be of type SHORT. However, Connector/J returned it as INTEGER.

    This affected the following methods: getImportedKeys(), getExportedKeys(), getCrossReference(). (Bug#44867)

  • The result set returned by getColumns() did not have the format defined in the JDBC API specifications. The fifth column, DATA_TYPE, of the result set should be of type INTEGER. Connector/J however returns SMALLINT. (Bug#44865)

  • The result set returned by getVersionColumns() did not have the format defined in the JDBC API specifications. The third column, DATA_TYPE, of the result set should be of type INTEGER. Connector/J however returns SMALLINT. (Bug#44863)

  • The result set returned by getBestRowIdentifier() did not have the format defined in the JDBC API specifications. The third column, DATA_TYPE, of the result set should be of type INTEGER. Connector/J however returns SMALLINT. (Bug#44862)

  • Connector/J contains logic to generate a message text specifically for streaming result sets when there are CommunicationsException exceptions generated. However, this code was never reached.

    In the CommunicationsException code:

    private boolean streamingResultSetInPlay = false;
    
    public CommunicationsException(ConnectionImpl conn, long lastPacketSentTimeMs,
    long lastPacketReceivedTimeMs, Exception underlyingException) {
    
    this.exceptionMessage = SQLError.createLinkFailureMessageBasedOnHeuristics(conn,
          lastPacketSentTimeMs, lastPacketReceivedTimeMs, underlyingException,
          this.streamingResultSetInPlay);

    streamingResultSetInPlay was always false, which in the following code in SQLError.createLinkFailureMessageBasedOnHeuristics() never being executed:

    if (streamingResultSetInPlay) {
        exceptionMessageBuf.append(
        Messages.getString("CommunicationsException.ClientWasStreaming")); //$NON-NLS-1$
    } else {
    ...

    (Bug#44588)

  • Statement.getGeneratedKeys() retained result set instances until the statement was closed. This caused memory leaks for long-lived statements, or statements used in tight loops. (Bug#44056)

  • LoadBalancingConnectionProxy.doPing() did not have blacklist awareness.

    LoadBalancingConnectionProxy implemented doPing() to ping all underlying connections, but it threw any exceptions it encountered during this process.

    With the global blacklist enabled, it catches these exceptions, adds the host to the global blacklist, and only throws an exception if all hosts are down. (Bug#43421)

  • When the MySQL Server was upgraded from 4.0 to 5.0, the Connector/J application then failed to connect to the server. This was because authentication failed when the application ran from EBCDIC platforms such as z/OS. (Bug#43071)

  • When connecting with traceProtocol=true, no trace data was generated for the server greeting or login request. (Bug#43070)

  • A ConcurrentModificationException was generated in LoadBalancingConnectionProxy:

    java.util.ConcurrentModificationException
     at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
     at java.util.HashMap$KeyIterator.next(Unknown Source)
     at
    com.mysql.jdbc.LoadBalancingConnectionProxy.getGlobalBlacklist(LoadBalancingConnectionProxy.java:520)
     at com.mysql.jdbc.RandomBalanceStrategy.pickConnection(RandomBalanceStrategy.java:55)
     at
    com.mysql.jdbc.LoadBalancingConnectionProxy.pickNewConnection(LoadBalancingConnectionProxy.java:414)
     at
    com.mysql.jdbc.LoadBalancingConnectionProxy.invoke(LoadBalancingConnectionProxy.java:390)

    (Bug#42055)

  • SQL injection was possible when using a string containing U+00A5 in a client-side prepared statement, and the character set being used was SJIS/Windows-31J. (Bug#41730)

  • MySQL Connector/J 5.1.7 was slower than previous versions when the rewriteBatchedStatements option was set to true.

    Note

    The performance regression in indexOfIgnoreCaseRespectMarker()has been fixed. It has also been made possible for the driver to rewrite INSERT statements with ON DUPLICATE KEY UPDATE clauses in them, as long as the UPDATE clause contains no reference to LAST_INSERT_ID(), as that would cause the driver to return bogus values for getGeneratedKeys() invocations. This has resulted in improved performance over version 5.1.7.

    (Bug#41532)

  • PreparedStatement.addBatch() did not check for all parameters being set, which led to inconsistent behavior in executeBatch(), especially when rewriting batched statements into multi-value INSERTs. (Bug#41161)

C.6.1.2. Changes in MySQL Connector/J 5.1.7 (21 October 2008)

Functionality added or changed:

  • When statements include ON DUPLICATE UPDATE, and rewriteBatchedStatements is set to true, batched statements are not rewritten into the form INSERT INTO table VALUES (), (), (), instead the statements are executed sequentially.

Bugs fixed:

  • Statement.getGeneratedKeys() returned two keys when using ON DUPLICATE KEY UPDATE and the row was updated, not inserted. (Bug#42309)

  • When using the replication driver with autoReconnect=true, Connector/J checks in PreparedStatement.execute (also called by CallableStatement.execute) to determine if the first character of the statement is an “S”, in an attempt to block all statements that are not read-only-safe, for example non-SELECT statements. However, this also blocked CALLs to stored procedures, even if the stored procedures were defined as SQL READ DATA or NO SQL. (Bug#40031)

  • With large result sets ResultSet.findColumn became a performance bottleneck. (Bug#39962)

  • Connector/J ignored the value of the MySQL Server variable auto_increment_increment. (Bug#39956)

  • Connector/J failed to parse TIMESTAMP strings for nanos correctly. (Bug#39911)

  • When the LoadBalancingConnectionProxy handles a SQLException with SQL state starting with “08”, it calls invalidateCurrentConnection, which in turn removes that Connection from liveConnections and the connectionsToHostsMap, but it did not add the host to the new global blacklist, if the global blacklist was enabled.

    There was also the possibility of a NullPointerException when trying to update stats, where connectionsToHostsMap.get(this.currentConn) was called:

    int hostIndex = ((Integer) this.hostsToListIndexMap.get(this.connectionsToHostsMap.get(this.currentConn))).intValue();
    

    This could happen if a client tried to issue a rollback after catching a SQLException caused by a connection failure. (Bug#39784)

  • When configuring the Java Replication Driver the last slave specified was never used. (Bug#39611)

  • When an INSERT ON DUPLICATE KEY UPDATE was performed, and the key already existed, the affected-rows value was returned as 1 instead of 0. (Bug#39352)

  • When using the random load balancing strategy and starting with two servers that were both unavailable, an IndexOutOfBoundsException was generated when removing a server from the whiteList. (Bug#38782)

  • Connector/J threw the following exception when using a read-only connection:

            java.sql.SQLException: Connection is read-only. Queries leading to data
            modification are not allowed.
          

    (Bug#38747)

  • Connector/J was unable to connect when using a non-latin1 password. (Bug#37570)

  • Incorrect result is returned from isAfterLast() in streaming ResultSet when using setFetchSize(Integer.MIN_VALUE). (Bug#35170)

  • When getGeneratedKeys() was called on a statement that had not been created with RETURN_GENERATED_KEYS, no exception was thrown, and batched executions then returned erroneous values. (Bug#34185)

  • The loadBalance bestResponseTime blacklists did not have a global state. (Bug#33861)

C.6.1.3. Changes in MySQL Connector/J 5.1.6 (07 March 2008)

Functionality added or changed:

  • Multiple result sets were not supported when using streaming mode to return data. Both normal statements and the resul sets from stored procedures now return multiple results sets, with the exception of result sets using registered OUTPUT paramaters. (Bug#33678)

  • XAConnections and datasources have been updated to the JDBC-4.0 standard.

  • The profiler event handling has been made extensible via the profilerEventHandler connection property.

  • Add the verifyServerCertificate propery. If set to "false" the driver will not verify the server's certificate when useSSL is set to "true"

    When using this feature, the keystore parameters should be specified by the clientCertificateKeyStore* properties, rather than system properties, as the JSSE doesn't it straightforward to have a nonverifying trust store and the "default" key store.

Bugs fixed:

  • DatabaseMetaData.getColumns() returns incorrect COLUMN_SIZE value for SET column. (Bug#36830)

  • When trying to read Time values like “00:00:00” with ResultSet.getTime(int) an exception is thrown. (Bug#36051)

  • JDBC connection URL parameters is ignored when using MysqlConnectionPoolDataSource. (Bug#35810)

  • When useServerPrepStmts=true and slow query logging is enabled, the connector throws a NullPointerException when it encounters a slow query. (Bug#35666)

  • When using the keyword “loadbalance” in the connection string and trying to perform load balancing between two databases, the driver appears to hang. (Bug#35660)

  • JDBC data type getter method was changed to accept only column name, whereas previously it accepted column label. (Bug#35610)

  • Prepared statements from pooled connections caused a NullPointerException when closed() under JDBC-4.0. (Bug#35489)

  • In calling a stored function returning a bigint, an exception is encountered beginning:

    java.sql.SQLException: java.lang.NumberFormatException: For input string:

    followed by the text of the stored function starting after the argument list. (Bug#35199)

  • The JDBC driver uses a different method for evaluating column names in resultsetmetadata.getColumnName() and when looking for a column in resultset.getObject(columnName). This causes Hibernate to fail in queries where the two methods yield different results, for example in queries that use alias names:

    SELECT column AS aliasName from table

    (Bug#35150)

  • MysqlConnectionPoolDataSource does not support ReplicationConnection. Notice that we implemented com.mysql.jdbc.Connection for ReplicationConnection, however, only accessors from ConnectionProperties are implemented (not the mutators), and they return values from the currently active connection. All other methods from com.mysql.jdbc.Connection are implemented, and operate on the currently active connection, with the exception of resetServerState() and changeUser(). (Bug#34937)

  • ResultSet.getTimestamp() returns incorrect values for month/day of TIMESTAMPs when using server-side prepared statements (not enabled by default). (Bug#34913)

  • RowDataStatic does't always set the metadata in ResultSetRow, which can lead to failures when unpacking DATE, TIME, DATETIME and TIMESTAMP types when using absolute, relative, and previous result set navigation methods. (Bug#34762)

  • When calling isValid() on an active connection, if the timeout is nonzero then the Connection is invalidated even if the Connection is valid. (Bug#34703)

  • It was not possible to truncate a BLOB using Blog.truncate() when using 0 as an argument. (Bug#34677)

  • When using a cursor fetch for a statement, the internal prepared statement could cause a memory leak until the connection was closed. The internal prepared statement is now deleted when the corresponding result set is closed. (Bug#34518)

  • When retrieving the column type name of a geometry field, the driver would return UNKNOWN instead of GEOMETRY. (Bug#34194)

  • Statements with batched values do not return correct values for getGeneratedKeys() when rewriteBatchedStatements is set to true, and the statement has an ON DUPLICATE KEY UPDATE clause. (Bug#34093)

  • The internal class ResultSetInternalMethods referenced the nonpublic class com.mysql.jdbc.CachedResultSetMetaData. (Bug#33823)

  • A NullPointerException could be raised when using client-side prepared statements and enabled the prepared statement cache using the cachePrepStmts. (Bug#33734)

  • Using server side cursors and cursor fetch, the table metadata information would return the data type name instead of the column name. (Bug#33594)

  • ResultSet.getTimestamp() would throw a NullPointerException instead of a SQLException when called on an empty ResultSet. (Bug#33162)

  • Load balancing connection using best response time would incorrectly "stick" to hosts that were down when the connection was first created.

    We solve this problem with a black list that is used during the picking of new hosts. If the black list ends up including all configured hosts, the driver will retry for a configurable number of times (the retriesAllDown configuration property, with a default of 120 times), sleeping 250ms between attempts to pick a new connection.

    We've also went ahead and made the balancing strategy extensible. To create a new strategy, implement the interface com.mysql.jdbc.BalanceStrategy (which also includes our standard "extension" interface), and tell the driver to use it by passing in the class name via the loadBalanceStrategy configuration property. (Bug#32877)

  • During a Daylight Savings Time (DST) switchover, there was no way to store two timestamp/datetime values , as the hours end up being the same when sent as the literal that MySQL requires.

    Note that to get this scenario to work with MySQL (since it doesn't support per-value timezones), you need to configure your server (or session) to be in UTC, and tell the driver not to use the legacy date/time code by setting useLegacyDatetimeCode to "false". This will cause the driver to always convert to/from the server and client timezone consistently.

    This bug fix also fixes Bug#15604, by adding entirely new date/time handling code that can be switched on by useLegacyDatetimeCode being set to "false" as a JDBC configuration property. For Connector/J 5.1.x, the default is "true", in trunk and beyond it will be "false" (that is, the old date/time handling code will be deprecated) (Bug#32577, Bug#15604)

  • When unpacking rows directly, we don't hand off error message packets to the internal method which decodes them correctly, so no exception is raised, and the driver than hangs trying to read rows that aren't there. This tends to happen when calling stored procedures, as normal SELECTs won't have an error in this spot in the protocol unless an I/O error occurs. (Bug#32246)

  • When using a connection from ConnectionPoolDataSource, some Connection.prepareStatement() methods would return null instead of the prepared statement. (Bug#32101)

  • Using CallableStatement.setNull() on a stored function would throw an ArrayIndexOutOfBounds exception when setting the last parameter to null. (Bug#31823)

  • MysqlValidConnectionChecker doesn't properly handle connections created using ReplicationConnection. (Bug#31790)

  • Retrieving the server version information for an active connection could return invalid information if the default character encoding on the host was not ASCII compatible. (Bug#31192)

  • Further fixes have been made to this bug in the event that a node is nonresponsive. Connector/J will now try a different random node instead of waiting for the node to recover before continuing. (Bug#31053)

  • ResultSet returned by Statement.getGeneratedKeys() is not closed automatically when statement that created it is closed. (Bug#30508)

  • DatabaseMetadata.getColumns() doesn't return the correct column names if the connection character isn't UTF-8. A bug in MySQL server compounded the issue, but was fixed within the MySQL 5.0 release cycle. The fix includes changes to all the sections of the code that access the server metadata. (Bug#20491)

  • Fixed ResultSetMetadata.getColumnName() for result sets returned from Statement.getGeneratedKeys() - it was returning null instead of "GENERATED_KEY" as in 5.0.x.

C.6.1.4. Changes in MySQL Connector/J 5.1.5 (09 October 2007)

The following features are new, compared to the 5.0 series of Connector/J

  • Support for JDBC-4.0 NCHAR, NVARCHAR and NCLOB types.

  • JDBC-4.0 support for setting per-connection client information (which can be viewed in the comments section of a query via SHOW PROCESSLIST on a MySQL server, or can be extended to support custom persistence of the information via a public interface).

  • Support for JDBC-4.0 XML processing via JAXP interfaces to DOM, SAX and StAX.

  • JDBC-4.0 standardized unwrapping to interfaces that include vendor extensions.

Functionality added or changed:

  • Added autoSlowLog configuration property, overrides slowQueryThreshold* properties, driver determines slow queries by those that are slower than 5 * stddev of the mean query time (outside the 96% percentile).

Bugs fixed:

  • When a connection is in read-only mode, queries that are wrapped in parentheses were incorrectly identified DML statements. (Bug#28256)

C.6.1.5. Changes in MySQL Connector/J 5.1.4 (Not Released)

Only released internally.

C.6.1.6. Changes in MySQL Connector/J 5.1.3 (10 September 2007)

The following features are new, compared to the 5.0 series of Connector/J

  • Support for JDBC-4.0 NCHAR, NVARCHAR and NCLOB types.

  • JDBC-4.0 support for setting per-connection client information (which can be viewed in the comments section of a query via SHOW PROCESSLIST on a MySQL server, or can be extended to support custom persistence of the information via a public interface).

  • Support for JDBC-4.0 XML processing via JAXP interfaces to DOM, SAX and StAX.

  • JDBC-4.0 standardized unwrapping to interfaces that include vendor extensions.

Functionality added or changed:

  • Connector/J now connects using an initial character set of utf-8 solely for the purpose of authentication to allow user names or database names in any character set to be used in the JDBC connection URL. (Bug#29853)

  • Added two configuration parameters:

    • blobsAreStrings — Should the driver always treat BLOBs as Strings. Added specifically to work around dubious metadata returned by the server for GROUP BY clauses. Defaults to false.

    • functionsNeverReturnBlobs — Should the driver always treat data from functions returning BLOBs as Strings. Added specifically to work around dubious metadata returned by the server for GROUP BY clauses. Defaults to false.

  • Setting rewriteBatchedStatements to true now causes CallableStatements with batched arguments to be re-written in the form "CALL (...); CALL (...); ..." to send the batch in as few client-server round trips as possible.

  • The driver now picks appropriate internal row representation (whole row in one buffer, or individual byte[]s for each column value) depending on heuristics, including whether or not the row has BLOB or TEXT types and the overall row-size. The threshold for row size that will cause the driver to use a buffer rather than individual byte[]s is configured by the configuration property largeRowSizeThreshold, which has a default value of 2KB.

  • The data (and how it is stored) for ResultSet rows are now behind an interface which allows us (in some cases) to allocate less memory per row, in that for "streaming" result sets, we re-use the packet used to read rows, since only one row at a time is ever active.

  • Added experimental support for statement "interceptors" via the com.mysql.jdbc.StatementInterceptor interface, examples are in com/mysql/jdbc/interceptors. Implement this interface to be placed "in between" query execution, so that it can be influenced (currently experimental).

  • The driver will automatically adjust the server session variable net_write_timeout when it determines its been asked for a "streaming" result, and resets it to the previous value when the result set has been consumed. (The configuration property is named netTimeoutForStreamingResults, with a unit of seconds, the value '0' means the driver will not try and adjust this value).

  • JDBC-4.0 ease-of-development features including auto-registration with the DriverManager via the service provider mechanism, standardized Connection validity checks and categorized SQLExceptions based on recoverability/retry-ability and class of the underlying error.

  • Statement.setQueryTimeout()s now affect the entire batch for batched statements, rather than the individual statements that make up the batch.

  • Errors encountered during Statement/PreparedStatement/CallableStatement.executeBatch() when rewriteBatchStatements has been set to true now return BatchUpdateExceptions according to the setting of continueBatchOnError.

    If continueBatchOnError is set to true, the update counts for the "chunk" that were sent as one unit will all be set to EXECUTE_FAILED, but the driver will attempt to process the remainder of the batch. You can determine which "chunk" failed by looking at the update counts returned in the BatchUpdateException.

    If continueBatchOnError is set to "false", the update counts returned will contain all updates up-to and including the failed "chunk", with all counts for the failed "chunk" set to EXECUTE_FAILED.

    Since MySQL doesn't return multiple error codes for multiple-statements, or for multi-value INSERT/REPLACE, it is the application's responsibility to handle determining which item(s) in the "chunk" actually failed.

  • New methods on com.mysql.jdbc.Statement: setLocalInfileInputStream() and getLocalInfileInputStream():

    • setLocalInfileInputStream() sets an InputStream instance that will be used to send data to the MySQL server for a LOAD DATA LOCAL INFILE statement rather than a FileInputStream or URLInputStream that represents the path given as an argument to the statement.

      This stream will be read to completion upon execution of a LOAD DATA LOCAL INFILE statement, and will automatically be closed by the driver, so it needs to be reset before each call to execute*() that would cause the MySQL server to request data to fulfill the request for LOAD DATA LOCAL INFILE.

      If this value is set to NULL, the driver will revert to using a FileInputStream or URLInputStream as required.

    • getLocalInfileInputStream() returns the InputStream instance that will be used to send data in response to a LOAD DATA LOCAL INFILE statement.

      This method returns NULL if no such stream has been set via setLocalInfileInputStream().

  • Setting useBlobToStoreUTF8OutsideBMP to true tells the driver to treat [MEDIUM/LONG]BLOB columns as [LONG]VARCHAR columns holding text encoded in UTF-8 that has characters outside the BMP (4-byte encodings), which MySQL server can't handle natively.

    Set utf8OutsideBmpExcludedColumnNamePattern to a regex so that column names matching the given regex will still be treated as BLOBs The regex must follow the patterns used for the java.util.regexpackage. The default is to exclude no columns, and include all columns.

    Set utf8OutsideBmpIncludedColumnNamePattern to specify exclusion rules to utf8OutsideBmpExcludedColumnNamePattern". The regex must follow the patterns used for the java.util.regex package.

Bugs fixed:

  • setObject(int, Object, int, int) delegate in PreparedStatmentWrapper delegates to wrong method. (Bug#30892)

  • NPE with null column values when padCharsWithSpace is set to true. (Bug#30851)

  • Collation on VARBINARY column types would be misidentified. A fix has been added, but this fix only works for MySQL server versions 5.0.25 and newer, since earlier versions didn't consistently return correct metadata for functions, and thus results from subqueries and functions were indistinguishable from each other, leading to type-related bugs. (Bug#30664)

  • An ArithmeticException or NullPointerException would be raised when the batch had zero members and rewriteBatchedStatements=true when addBatch() was never called, or executeBatch() was called immediately after clearBatch(). (Bug#30550)

  • Closing a load-balanced connection would cause a ClassCastException. (Bug#29852)

  • Connection checker for JBoss didn't use same method parameters via reflection, causing connections to always seem "bad". (Bug#29106)

  • DatabaseMetaData.getTypeInfo() for the types DECIMAL and NUMERIC will return a precision of 254 for server versions older than 5.0.3, 64 for versions 5.0.3-5.0.5 and 65 for versions newer than 5.0.5. (Bug#28972)

  • CallableStatement.executeBatch() doesn't work when connection property noAccessToProcedureBodies has been set to true.

    The fix involves changing the behavior of noAccessToProcedureBodies,in that the driver will now report all paramters as "IN" paramters but allow callers to call registerOutParameter() on them without throwing an exception. (Bug#28689)

  • DatabaseMetaData.getColumns() doesn't contain SCOPE_* or IS_AUTOINCREMENT columns. (Bug#27915)

  • Schema objects with identifiers other than the connection character aren't retrieved correctly in ResultSetMetadata. (Bug#27867)

  • Connection.getServerCharacterEncoding() doesn't work for servers with version >= 4.1. (Bug#27182)

  • The automated SVN revisions in DBMD.getDriverVersion(). The SVN revision of the directory is now inserted into the version information during the build. (Bug#21116)

  • Specifying a "validation query" in your connection pool that starts with "/* ping */" _exactly_ will cause the driver to instead send a ping to the server and return a fake result set (much lighter weight), and when using a ReplicationConnection or a LoadBalancedConnection, will send the ping across all active connections.

C.6.1.7. Changes in MySQL Connector/J 5.1.2 (29 June 2007)

This is a new Beta development release, fixing recently discovered bugs.

Functionality added or changed:

  • Setting the configuration property rewriteBatchedStatements to true will now cause the driver to rewrite batched prepared statements with more than 3 parameter sets in a batch into multi-statements (separated by ";") if they are not plain (that is, without SELECT or ON DUPLICATE KEY UPDATE clauses) INSERT or REPLACE statements.

C.6.1.8. Changes in MySQL Connector/J 5.1.1 (22 June 2007)

This is a new Alpha development release, adding new features and fixing recently discovered bugs.

Functionality added or changed:

  • Incompatible Change: Pulled vendor-extension methods of Connection implementation out into an interface to support java.sql.Wrapper functionality from ConnectionPoolDataSource. The vendor extensions are javadoc'd in the com.mysql.jdbc.Connection interface.

    For those looking further into the driver implementation, it is not an API that is used for plugability of implementations inside our driver (which is why there are still references to ConnectionImpl throughout the code).

    We've also added server and client prepareStatement() methods that cover all of the variants in the JDBC API.

    Connection.serverPrepare(String) has been re-named to Connection.serverPrepareStatement() for consistency with Connection.clientPrepareStatement().

  • Row navigation now causes any streams/readers open on the result set to be closed, as in some cases we're reading directly from a shared network packet and it will be overwritten by the "next" row.

  • Made it possible to retrieve prepared statement parameter bindings (to be used in StatementInterceptors, primarily).

  • Externalized the descriptions of connection properties.

  • The data (and how it is stored) for ResultSet rows are now behind an interface which allows us (in some cases) to allocate less memory per row, in that for "streaming" result sets, we re-use the packet used to read rows, since only one row at a time is ever active.

  • Similar to Connection, we pulled out vendor extensions to Statement into an interface named