unknown bc7369b74b MWL#89: Cost-based choice between Materialization and IN->EXISTS transformation ...

Merge 5.3-mwl89 into 5.3 main.

There is one remaining test failure in this merge:
innodb_mysql_lock2. All other tests have been checked to
deliver the same results/explains as 5.3-mwl89, including
the few remaining wrong results.

2010-11-05 14:42:58 +02:00

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