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MariaDB 5.2.0 Release Notes

The most recent release in the MariaDB 5.2 series is:MariaDB 5.2.14

Download | Release Notes | Changelog |Overview of 5.2

Release date: 10 Apr 2010

Release Notes

See the MariaDB versus MySQL page for a high-level overview of the differences between MariaDB and MySQL. For a description of this release see the MariaDB 5.1 overview.

This is a beta release of MariaDB. We believe it to be relatively bug-free, and want to get it out so everyone can try it. Development is ongoing, see for a list of features that are planned for future releases.

New features and changes in this version include:

patch from Percona

This patch enables the gathering of more detailed statistics in . As part of this patch, several new tables (with corresponding new FLUSH andSHOW commands) have been added. See: for details.

Virtual columns patch (Contribution)

We've added VIRTUAL and PERSISTENT virtual columns to . See: for details.

Add a mysqlbinlog option to change the used database.

We've added a new --rewrite-db=name option to mysqlbinlog for applying updates to a database with a different name than the original. See: for details.

Maria storage engine group commit

Two new system variables have been added:maria_group_commit andmaria_group_commit_interval. See for details.

Backport libservices

We've backported the to .

Fix the packaging scripts

We updated the packaging scripts in to fix some errors.

Pluggable authentication.

In the authentication of users is delegated to plugins. See: for details.

Additional information added to engine description, new MariaDB plugin declaration

We've added two new columns to the .
For plugin authors: As part of this change, the MariaDB plugin declaration now differs slightly from the MySQL plugin declaration (the MySQL plugin declaration is still supported for dynamically loaded plugins). See: for details.

Segmented Key Cache for MyISAM

New engine-defined options in the CREATE TABLE

Storage engines can now allow the user to specify additional attributes per index, field, or table. The engine needs to declare what attributes it introduces. See: for more information.