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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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bitmap_is_set(table->write_set, fiel Problem: creating a temporary table we allocate the group buffer if needed followed by table bitmaps (see create_tmp_table()). Reserving less memory for the group buffer than actually needed (used) for values retrieval may lead to overlapping with followed bitmaps in the memory pool that in turn leads to unpredictable consequences. As we use Item->max_length sometimes to calculate group buffer size, it must be set to proper value. In this particular case Item_datetime_typecast::max_length is too small. Another problem is that we use max_length to calculate the group buffer key length for items represented as DATE/TIME fields which is superfluous. Fix: set Item_datetime_typecast::max_length properly, accurately calculate the group buffer key length for items represented as DATE/TIME fields in the buffer. |
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| win | ||
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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.