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MySQL 6.0 Reference Manual :: C MySQL Change History :: C.2 Changes in release 5.2.x (Development) :: C.2.5 Changes in MySQL 5.2.1 (Not released: Alpha)
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C.2.5. Changes in MySQL 5.2.1 (Not released: Alpha)

Functionality added or changed:

  • Performance improvements: thread bottlenecks have been reduced when a larger number of parallel auto-commit threads executed a trivial query in a hard loop.

Bugs fixed:

  • Falcon compound primary key problem. (Bug#25828)

  • Assertion when killing a CREATE TABLE ... SELECT statement. (Bug#25565)

  • A DROP TABLE statement on a table created using CREATE TABLE ... SELECT ... crashed the server. (Bug#25564)

  • Crash if create index on nullable utf8 column. (Bug#25555)

  • Between fails with Unicode field. (Bug#24511)