Bugs Fixed
InnoDB: A missing null pointer check for an index instance caused a failure. (Bug #33600109)
InnoDB: Purge threads processed undo records of an encrypted table for which the tablespace was not loaded, causing a failure. (Bug #32586721)
InnoDB: Incorrect AUTO_INCREMENT values were generated when the maximum integer column value was exceeded. The error was due to the maximum column value not being considered. The previous valid AUTO_INCREMENT value should have been returned in this case, causing a duplicate key error. (Bug #87926, Bug #26906787)
Partitioning: In some cases, establishing a connection to MySQL server could fail if the .ibd file for a partition was missing. (Bug #33459653)
Statements that cannot be parsed (due, for example, to syntax errors) are no longer written to the slow query log. (Bug #33732907)
It was not possible to revoke the DROP privilege on the Performance Schema. (Bug #33578113)
A page cleaner thread timed out as it waited for an exclusive lock on an index page held by a full-text index creation operation on a large table. (Bug #33101844)
A memory leak occurred if mysqldump was used on more than one table with the --order-by-primary option. The memory allocated for sorting each table’s rows is now freed after every table, rather than only once. (Bug #30042589, Bug #96178)
mysqld_safe log message textual errors were corrected. Thanks to Bin Wang at China Mobile for the contribution. (Bug #106590, Bug #33903639)
Full Changelog: https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-38.html
Sponsored by: Netzkommune GmbH
(cherry picked from commit 7339d36b4f)
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