igor@olga.mysql.com 3c814f2243 Fixed bug #25219: crash for a query that contains an EXIST subquery with ...

UNION over correlated and uncorrelated SELECTS.
In such subqueries each uncorrelated SELECT should be considered as
uncacheable. Otherwise join_free is called for it and in many cases
it causes some problems.

2007-01-19 00:17:28 -08:00

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