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Google has [released improvements and enhancements][3] for the popular open source relational database, [MySQL][2]. Google's code has not yet been incorporated into the official release, though the company would like to see it added, but developers can download the source (GPL licensed) from Google.
While the announcement on the Google Code blog makes no mention of it, the [MySQL conference][1] in Santa Clara California is in full swing this week and the additional code should be welcome news to MySQL developers.
Google's patches of MySQL are designed to enhance both the manageability and reliability of the database software. Particularly interesting is a patch that allows administrators to track database usage via new SQL statements for "monitoring resource usage by table and account."
Other enhancements include support for semi-synchronous replication, mirroring the binlog from a master to a slave, quickly promoting a slave to a master during failover, and keeping InnoDB and replication state on a slave consistent during crash recovery.
The patches are currently available for MySQL 4, but Google says similar patches for the most resent stable version of MySQL, version 5, will be available soon.
To use the new patches you'll need to [download them from Google][4] and compile or re-compile MySQL from the source.
[1]: http://www.mysqlconf.com/ "MySQL Conference"
[2]: http://www.mysql.com/ "MySQL"
[3]: http://google-code-updates.blogspot.com/2007/04/google-releases-patches-that-enhance.html "Google releases patches that enhance the manageability and reliability of MySQL"
[4]: http://code.google.com/p/google-mysql-tools/wiki/Mysql4Patches "MySQL 4 patches"
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