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Fix for bug#58553, "Queries with pushed conditions causes 'explain extended'

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to crash mysqld". 
      
handler::pushed_cond was not always properly reset when table objects where
recycled via the table cache.
      
handler::pushed_cond is now set to NULL in handler::ha_reset(). This should 
prevent pushed conditions from (incorrectly) re-apperaring in later queries.
This commit is contained in:
Jan Wedvik
2011-01-11 12:09:54 +01:00
parent 2f47416678
commit 0a7cfad080
3 changed files with 6 additions and 1 deletions
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sql/sql_select.cc
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@@ -6380,7 +6380,6 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
tab->select_cond=sel->cond=tmp;
/* Push condition to storage engine if this is enabled
and the condition is not guarded */
tab->table->file->pushed_cond= NULL;
if (thd->variables.engine_condition_pushdown)
{
COND *push_cond=