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mirror of https://github.com/MariaDB/server.git synced 2025-05-28 13:01:41 +03:00
Sergei Golubchik 9b11956e86 MDEV-13049 Querying INFORMATION_SCHEMA becomes slow in MariaDB 10.1
Optimizations:
* avoid faster ext_table_discovery_simple() *only* when there are
  engines with discover_table_names() method *and* they look at
  file names. P_S implements discover_table_names(), but it's not
  a reason to use slower extension_based_table_discovery().
* don't pre-sort table names if ORDER BY or GROUP BY was specified
* starting from 10.3 only sort table names for SHOW commands
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MariaDB is 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.
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 Foundation and the MariaDB Corporation, 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:
http://mariadb.org/
https://mariadb.com/kb/en/
https://mariadb.com/kb/en/mariadb-vs-mysql-features/
https://mariadb.com/kb/en/mariadb-versus-mysql-features/
https://mariadb.com/kb/en/mariadb-versus-mysql-compatibility/

As MariaDB is a full replacement of MySQL, the MySQL manual at
http://dev.mysql.com/doc is generally applicable.

More help is available from the Maria Discuss mailing list
https://launchpad.net/~maria-discuss
and the #maria IRC channel on Freenode.

***************************************************************************

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, COPYING.LESSER,
and COPYING.thirdparty files.

***************************************************************************

IMPORTANT:

Bug and/or error reports regarding MariaDB should be submitted at
http://mariadb.org/jira

Bugs in the MySQL code can also be submitted at http://bugs.mysql.com

The code for MariaDB, including all revision history, can be found at:
https://github.com/MariaDB/server

***************************************************************************
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Сервер MariaDB - это разработанный сообществом форк сервера MySQL
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