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MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
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Before this fix, the command SHOW ENGINE <name> STATUS would: - print a warning if the engine name is unknown, - proceed and implement the same behavior as SHOW ENGINE ALL STATUS, and list the status of all the storage engines registered. In particular, this behavior caused confusion about the command : SHOW ENGINE MUTEX STATUS, which as a side effect would print the status of the innodb engine when that engine is registered. Also, before this fix, every time an unknown engine name was substituted by the default engine (which happen unless SQL_MODE NO_ENGINE_SUBSTITUTION is set), a malformed warning was raised. For example, the command ALTER TABLE T1 ENGINE = X would print : Warnings: Error 1286 Unknown table engine 'X' With this fix: SHOW ENGINE <name> STATUS|LOGS|MUTEX always fails with an error when the engine <name> is unknown. For other commands, warnings about unknown engines are raised as: Warnings: Warning 1286 Unknown table engine 'X' In other words, engine substitution never affect the SHOW ENGINE command, since this would lead to very confusing results. mysql-test/r/ndb_dd_basic.result: Warnings for unknown engines. mysql-test/r/partition_innodb.result: Warnings for unknown engines. mysql-test/r/ps_1general.result: Fixed SHOW ENGINE <name> STATUS|LOGS|MUTEX mysql-test/r/show_check.result: Fixed SHOW ENGINE <name> STATUS|LOGS|MUTEX mysql-test/t/ps_1general.test: Fixed SHOW ENGINE <name> STATUS|LOGS|MUTEX mysql-test/t/show_check.test: Fixed SHOW ENGINE <name> STATUS|LOGS|MUTEX sql/sql_yacc.yy: Fixed SHOW ENGINE <name> STATUS|LOGS|MUTEX |
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This is a release of MySQL, a dual-license SQL database server. MySQL is brought to you by the MySQL team at MySQL AB. License information can be found in these files: - For GPL (free) distributions, see the COPYING file and the EXCEPTIONS-CLIENT file. - For commercial distributions, see the LICENSE.mysql file. For further information about MySQL or additional documentation, see: - The latest information about MySQL: http://www.mysql.com - The current MySQL documentation: http://dev.mysql.com/doc Some manual sections of special interest: - If you are migrating from an older version of MySQL, please read the "Upgrading from..." section first! - To see what MySQL can do, take a look at the features section. - For installation instructions, see the Installing and Upgrading chapter. - For the new features/bugfix history, see the Change History appendix. - For the currently known bugs/misfeatures (known errors) see the Problems and Common Errors appendix. - For a list of developers and other contributors, see the Credits appendix. A local copy of the MySQL Reference Manual can be found in the Docs directory in GNU Info format. You can also browse the manual online or download it in any of several formats at the URL given earlier in this file. ************************************************************ IMPORTANT: Bug or error reports should be sent to http://bugs.mysql.com.