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MySQL 5.5 Release Notes  /  Changes in MySQL 5.5.59 (2018-01-15, General availability)

Changes in MySQL 5.5.59 (2018-01-15, General availability)

Configuration Notes

  • For RHEL, SLES, and Fedora RPMs, the default plugin directory for debug builds has been changed from /usr/lib64/mysql/plugin to /usr/lib64/mysql/plugin/debug. (Bug #27072155, Bug #88363)

Test Suite Notes

  • Documentation for the MySQL Test Suite is now maintained in the MySQL source tree using Doxygen (see the MySQL Server Doxygen documentation, available at The related Unix man pages that previously were produced from the old test suite manual are no longer updated and have gone out of date. Consequently, they are no longer included in MySQL distributions. (Bug #27021754)

Bugs Fixed

  • InnoDB: Warnings that should only appear in debug builds of MySQL were printed to the error log when the length of the history list exceeded 2000000. (Bug #24296076, Bug #82213)

  • Packaging: Initialization of the MySQL Server Docker container failed with the message hostname: command not found when the server was being initialized. That was due to a missing library in the Docker image. (Bug #26747305)

  • Partitioning: Queries involving NULL were not always handled correctly on tables that were partitioned by LIST. (Bug #76418, Bug #20748521)

    References: See also: Bug #86255, Bug #26034430.

  • Microsoft Windows: On Windows, with the myisam_use_mmap and flush system variables enabled, MyISAM did not always flush table files properly. (Bug #26880757)

  • VALUES() was not handled correctly in some cases. (Bug #26881946)

    References: See also: Bug #19601973, Bug #17458914.

  • Incorrect results or a server exit could result when SHA2() was passed a user-defined variable in some character sets. (Bug #26704451)

  • Creating a table with excessive index information could cause a server exit. (Bug #26529369)

  • Setting the MYSQL_GROUP_SUFFIX environment variable had no effect. (Bug #23072792)

  • A circular dependency problem involving sql/ was resolved. (Bug #16877045)

  • A prepared statement containing an ORDER BY list that referred to a parameter was not always handled correctly. (Bug #87863, Bug #26867652)