MySQL 5.6 Release Notes
mysqlcheck was missing in the MySQL Server Docker image, which prevented mysql_upgrade from running. (Bug #26400146, Bug #86968)
InnoDB: Replication lag occurred on slave instances during large update operations on tables with many partitions. (Bug #25687813, Bug #85352)
InnoDB: A failure occurred during an end range comparison. (Bug #25669686)
InnoDB:
Enabling the
innodb_buffer_pool_load_now
setting failed in read-only mode. The event that signals the
buffer pool load thread was not initialized.
(Bug #25586766)
InnoDB: A long wait for a dictionary operation lock held by a full-text search synchronization operation caused a server exit. (Bug #24938374, Bug #26376681, Bug #26376239)
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.
Replication:
When replicating a partitioned table with an index, on a
replication slave where HASH_SCAN
was
specified as part of the
slave_rows_search_algorithms
setting, the slave I/O thread sometimes stopped with an error
HA_ERR_KEY_NOT_FOUND
.
(Bug #26137159)
Replication:
Replication clients no longer enable LOCAL
capability for LOAD DATA
statements, because they do not use
LOAD DATA
LOCAL
statements.
(Bug #24763131)
Replication: In case of a failure while creating multiple slave applier worker threads, some threads would be left orphaned and their resources would not be collected. Thanks to Laurynas Biveinis for his contribution to fixing this bug. (Bug #24679056, Bug #82980)
MSI packages for Windows failed to detect when Microsoft Visual C++ 2010 Redistributable Package was installed. (Bug #26501092, Bug #87139)
yaSSL could incorrectly perform TLS cipher negotiation. (Bug #26482173)
The server failed to check the maximum path length for partition names. (Bug #26390632)
Identifiers containing a mixt of backslashes and backticks could be parsed incorrectly. (Bug #26372491)
Source packages for Debian platforms contained prebuilt debug binaries, causing build failures on any architectures other than the one on which those binaries were built. (Bug #26186911)
The test
database was missing from MSI
packages.
(Bug #26168832)
Uninstalling the daemon_memcached
plugin
caused a serious error.
(Bug #25909540)
Selecting from a view could yield different results with materialization enabled versus materialization disabled. (Bug #25782811, Bug #85622)
The Performance Schema failed to check the maximum host length for client connections. (Bug #25510805)
A server error occurred when a full text search result exceeded
the
innodb_ft_result_cache_limit
setting. The patch for this bug also backports a related patch
(Bug #21140111).
(Bug #25033538)
If a stored function was considered a constant by the optimizer,
calling it from a subquery in a NOT IN
condition in the WHERE
clause could cause a
server exit.
(Bug #23577867)
A mysqldump memory leak was fixed. Thanks to Yura Sorokin for the patch. (Bug #23531150, Bug #81714)
If a session rolled back to a savepoint and then was killed, the statements up to the point of the savepoint could be committed. (Bug #22350047, Bug #79596)
For clients that used Connector/Python and authenticated using
the sha256_password
plugin, the server could
handle connections incorrectly.
(Bug #21421642)
NAME_CONST()
can return null if
incorrect arguments are given. In some cases, this was not
handled and could cause a server exit.
(Bug #19143243, Bug #26361149)