Hi!

InnoDB is a MySQL table type which provides transactions, foreign key
constraints, and a non-free Hot Backup tool.

InnoDB is included in all versions of MySQL-4.0, which you can download from
http://www.mysql.com/downloads/mysql-4.0.html.

MySQL-4.0.12 is a bugfix release of the MySQL-4.0 branch, which will soon be
declared stable.

Full changelog:

* In crash recovery InnoDB now prints progress information about the
rollback of large transactions.

* Fixed a bug/feature: if your application program used mysql_use_result(),
and used >= 2 connections to send SQL queries, it could deadlock on the
adaptive hash S-latch in btr0sea.c. Now mysqld releases the S-latch whenever
it passes data from a SELECT to the client.

* Fixed a bug: MySQL could erroneously return 'Empty set' if InnoDB
estimated an index range size to 0 records though the range was not empty;
MySQL also failed to do the next-key locking in the case of an empty index
range.

* An outstanding bug: SQL command SET FOREIGN_KEY_CHECKS=0 is not replicated
properly in the MySQL replication.

Best regards,

Heikki
Innobase Oy
http://www.innodb.com - read the up-to-date InnoDB manual at
http://www.innodb.com/ibman.html


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