Columns added to TABLE_STATISTICS - ROWS_INSERTED, ROWS_DELETED, ROWS_UPDATED, KEY_READ_HITS and KEY_READ_MISSES. Columns added to CLIENT_STATISTICS and USER_STATISTICS: - KEY_READ_HITS and KEY_READ_MISSES. User visible changes (except new columns): - CLIENT_STATISTICS and USER_STATISTICS has columns KEY_READ_HITS and KEY_READ_MISSES added after column ROWS_UPDATED before SELECT_COMMANDS. Other changes: - Do not collect table statistics for system tables like index_stats table_stats, performance_schema, information_schema etc as the user has no control of these and the generate noice in the statistics. - All row variables that are part of user_stats are moved to 'struct rows_stats' to make it easy to clear all of them at once. - ha_read_key_misses added to STATUS_VAR Notes: - userstat.result has a change of numbers of rows for handler_read_key. This is because use-stat-tables is now disabled for the test.
Code status:
MariaDB: The innovative open source database
MariaDB was designed as a drop-in replacement of MySQL(R) with more features, new storage engines, fewer bugs, and better performance.
MariaDB is brought to you by the MariaDB Foundation and the MariaDB Corporation. Please read the CREDITS file for details about the MariaDB Foundation, and who is developing MariaDB.
MariaDB is developed by many of the original developers of MySQL who now work for the MariaDB Corporation, the MariaDB Foundation and by many people in the community.
MySQL, which is the base of MariaDB, is a product and trademark of Oracle Corporation, Inc. For a list of developers and other contributors, see the Credits appendix. You can also run 'SHOW authors' to get a list of active contributors.
A description of the MariaDB project and a manual can be found at:
https://mariadb.com/kb/en/mariadb-vs-mysql-features/
https://mariadb.com/kb/en/mariadb-versus-mysql-compatibility/
https://mariadb.com/kb/en/new-and-old-releases/
Getting the code, building it and testing it
Refer to the following guide: https://mariadb.org/get-involved/getting-started-for-developers/get-code-build-test/ which outlines how to correctly build the source code and run the MariaDB testing framework.
Help
More help is available from the Maria Discuss mailing list https://lists.mariadb.org/postorius/lists/discuss.lists.mariadb.org/ and MariaDB's Zulip instance, https://mariadb.zulipchat.com/
Licensing
MariaDB is specifically available only under version 2 of the GNU General Public License (GPLv2). (I.e. Without the "any later version" clause.) This is inherited from MySQL. Please see the README file in the MySQL distribution for more information.
License information can be found in the COPYING file. Third party license information can be found in the THIRDPARTY file.
Bug Reports
Bug and/or error reports regarding MariaDB should be submitted at: https://jira.mariadb.org
For reporting security vulnerabilities, see our security-policy.
The code for MariaDB, including all revision history, can be found at: https://github.com/MariaDB/server