MySQL is a very popular and open source SQL database provided by MySQL AB. MySQL AB is a commercial company that builds its business providing services around the MySQL database.
MySQL is the world's most popular open source database software, with over 100 million copies of its software downloaded or distributed throughout its history.
With superior speed, reliability, and ease of use, MySQL has become the preferred choice of corporate IT Managers because it eliminates the major problems associated with downtime, maintenance, administration and support.
MySQL is a key part of LAMP (Linux, Apache, MySQL, PHP / Perl / Python), the fast growing open source enterprise software stack.
More and more companies are using LAMP as an alternative to expensive proprietary software stacks because of its lower cost and freedom from lock-in.
What's New in This Release: [ read full changelog ]
Functionality Added or Changed:
· Important Change: Replication: INSERT ON DUPLICATE KEY UPDATE is now marked as unsafe for statement-based replication if the target table has more than one primary or unique key. For more information, see Section 16.1.2.3, “Determination of Safe and Unsafe Statements in Binary Logging”.
Bugs Fixed:
· Security Fix: Bug #64884 was fixed.
· InnoDB: Replication: When binary log statements were replayed on the slave, the Com_insert, Com_update, and Com_delete counters were incremented by BEGIN statements initiating transactions affecting InnoDB tables but not by COMMIT statements ending such transactions. This affected these statements whether they were replicated or they were run using mysqlbinlog. (Bug #12662190)
· If the --bind-address option was given a host name value and the host name resolved to more than one IP address, the server failed to start. For example, with --bind-address=localhost, if localhost resolved to both 127.0.0.1 and ::1, startup failed...
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