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Early check of subquery cache hit rate added to limit its performance impact in the worst case.

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sql/sql_expression_cache.cc:
  Early check of subquery cache hit rate added to limit its performance impact in the worst case.
  Disabling cache moved to method.
sql/sql_expression_cache.h:
  Disabling cache moved to method.
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2011-08-12 13:54:41 +03:00
parent fede2ee7f1
commit 52e70226bc
2 changed files with 30 additions and 9 deletions
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sql/sql_expression_cache.h
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@ -70,6 +70,7 @@ public:
void init();
private:
void disable_cache();
/* tmp table parameters */
TMP_TABLE_PARAM cache_table_param;