Functionality added or changed:
Important Change: Incompatible Change:
FEDERATED storage engine is now disabled
by default in binary distributions. The engine is still
available and can be enabled by starting the server with the
mysqltest was changed to be more robust in the case of a race condition that can occur for rapid disconnect/connect sequences with the server. The account used by mysqltest could reach its allowed simultaneous-sessions user limit if the connect attempt occurred before the server had fully processed the preceding disconnect. mysqltest now checks specificaly for a user-limits error when it connects; if that error occurs, it delays briefly before retrying. (Bug#23921)
Performing an insert on a table having an
AUTO_INCREMENT column and an
INSERT trigger that was being
replicated from a master running MySQL 5.0 or any version of
MySQL 5.1 up to and including MySQL 5.1.11 to a slave running
MySQL 5.1.12 or later caused the replication slave to crash.
See also Bug#33029.
Some binary distributions had a duplicate “-64bit” suffix in the file name. (Bug#37623)
ha_innodb.so was incorrectly installed in
lib/mysql directory rather than in
An empty bit-string literal (
b'') caused a
server crash. Now the value is parsed as an empty bit value
(which is treated as an empty string in string context or 0 in
The mysql client incorrectly parsed statements containing the word “delimiter” in mid-statement.