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MDEV-430: Server crashes in select_describe on EXPLAIN with materialization+semijoin, etc

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- Don't do early cleanup of uncorrelated subqueries if we're running an EXPLAIN.
This commit is contained in:
Sergey Petrunya
2012-08-28 15:15:05 +04:00
parent 0af0e7a70a
commit 2d99ea454f
7 changed files with 95 additions and 11 deletions
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2
sql/sql_select.cc
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@ -10543,7 +10543,7 @@ void JOIN::join_free()
Optimization: if not EXPLAIN and we are done with the JOIN,
free all tables.
*/
bool full= !(select_lex->uncacheable);
bool full= !(select_lex->uncacheable) && !(thd->lex->describe);
bool can_unlock= full;
DBUG_ENTER("JOIN::join_free");