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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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DATE/DATETIME values are out of the currently supported 4 basic value types (INT,STRING,REAL and DECIMAL). So expressions (not fields) of compile type DATE/DATETIME are generally considered as STRING values. This is not so when they are compared : then they are compared as INTEGER values. But the rule for comparison as INTEGERS must be checked explicitly each time when a comparison is to be performed. filesort is one such place. However there the check was not done and hence the expressions (not fields) of type DATE/DATETIME were sorted by their string representation. Fixed to compare them as INTEGER values for filesort. mysql-test/r/order_by.result: Bug #26672: test case mysql-test/t/order_by.test: Bug #26672: test case sql/filesort.cc: Bug #26672: sort dates/times as integers |
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| README | ||
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.