MariaDB 5.1 is based on MySQL 5.1 and is available under the terms of the GPL v2 license.
MariaDB will be kept up to date with the latest MySQL release from the same branch.
In most respects MariaDB will work exactly as MySQL: all commands, interfaces, libraries and APIs that exist in MySQL also exist in MariaDB.
Currently the main differences between MariaDB 5.1 and MySQL 5.1 are:
- Maria storage engine is included
- PBXT storage engine is included
- XtraDB storage engine is included
- FederatedX storage engine is included
- Faster complex queries
- Pool of Threads
- Fewer warnings and bugs
- Speed improvements
- Extensions (More index parts, new startup options etc)
- Better testing of features
- Table elimination
- Slow Query Log Extended Statistics
- User profiling (SHOW PROFILE) is compiled in by default.
In MariaDB 5.2, the new features are:
- Group commit for the Maria storage engine. (faster)
- userstatv2', which creates several new information_schema tables with useful statistics information. You enable the statistics by setting the 'userstat' variable.
(for a definite and up-to-date list of features in 5.2, see MariaDB 5.2 page).
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