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MySQL News

04/26/2006
MySQL 5.1.9-beta released.

MySQL 5.1.9, a new version of the popular Open Source Database Management System, has been released. The Community Edition is now available in source and binary form for a number of platforms from our download pages and mirror sites.

Note that not all mirror sites may be up to date at this point in time - if you can't find this version on some mirror, please try again later or choose another download site.

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

NOTE: This Beta release, as any other pre-production release, should not be installed on ``production'' level systems or systems with critical data. It is good practice to back up your data before installing any new version of software. Although MySQL has worked very hard to ensure a high level of quality, protect your data by making a backup as you would for any software beta release.

Please refer to our bug database for more details about the individual bugs fixed in this version.

Changes in release 5.1.9:

Functionality added or changed:

  • SHOW PLUGIN was renamed to SHOW PLUGINS. SHOW PLUGIN now is deprecated and generates a warning.
  • mysqld_safe no longer checks for a mysqld-max binary. Instead, mysqld_safe nows checks only for the standard mysqld server unless another server binary is specified explicitly.
  • For partitioned tables, the output of SHOW TABLE STATUS now shows in the Engine column the name of the storage engine used by all partitions for the table; in the Create_options column, the output now shows "partitioned" for a partitioned table. This change also affects the values shown in the correspondingcolumns of the INFORMATION_SCHEMA.TABLES table.
  • The NDBCluster storage engine now supports CREATE TABLE statements of arbitrary length. (Previously, CREATE TABLE statements for MySQL Cluster tables could contain a maximum of 4096 characters only.)
  • Large file support was re-enabled for the MySQL server binary for the AIX 5.2 platform.

Bugs fixed:

  • NDB Cluster: BLOB columns did not work correctly with user-partitioned NDB tables.
  • COUNT(*) on a MyISAM table could return different results for the base table and a view on the base table.
  • For full-text searches in boolean mode, and when a full-text parser plugin was used, a MYSQL_FTPARSER_PARAM::ftparser_state could have been corrupted by recursive calls to the plugin.
  • Partition pruning did not work properly for some kinds of partitioning and subpartitioning, with certain WHERE clauses. (Partitions and subpartitions that should have been marked as used were not so marked.) The error could manifest as incorrect content in EXPLAIN PARTITIONS output as well as missing rows in the results of affected queries.

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