ed0a723566
The reason for this is that we call file->index_flags(index, 0, 1) multiple times in best_access_patch()when optimizing a table. For example, in InnoDB, the calls is not trivial (4 if's and 2 assignments) Now the function is inlined and is just a memory reference. Other things: - handler::is_clustering_key() and pk_is_clustering_key() are now inline. - Added TABLE::can_use_rowid_filter() to simplify some code. - Test if we should use a rowid_filter only if can_use_rowid_filter() is true. - Added TABLE::is_clustering_key() to avoid a memory reference. - Simplify some code using the fact that HA_KEYREAD_ONLY is true implies that HA_CLUSTERED_INDEX is false. - Added DBUG_ASSERT to TABLE::best_range_rowid_filter() to ensure we do not call it with a clustering key. - Reorginized elements in struct st_key to get better memory alignment. - Updated ha_innobase::index_flags() to not have HA_DO_RANGE_FILTER_PUSHDOWN for clustered index |
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| libmariadb@12bd1d5511 | ||
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| KNOWN_BUGS.txt | ||
| README.md | ||
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Code status:
ci.appveyor.com
MariaDB: The open source relational 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/
Help
More help is available from the Maria Discuss mailing list https://launchpad.net/~maria-discuss, MariaDB's Zulip instance, https://mariadb.zulipchat.com/
Live QA for beginner contributors
MariaDB has a dedicated time each week when we answer new contributor questions live on Zulip. From 8:00 to 10:00 UTC on Mondays, and 10:00 to 12:00 UTC on Thursdays, anyone can ask any questions they’d like, and a live developer will be available to assist.
New contributors can ask questions any time, but we will provide immediate feedback during that interval.
Licensing
NOTE:
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: https://mariadb.org/about/security-policy/
The code for MariaDB, including all revision history, can be found at: https://github.com/MariaDB/server