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MDEV-17362: SIGSEGV in JOIN::optimize_inner or Assertion `fixed == 0' failed in Item_equal::fix_fields, server crashes after 2nd execution of PS

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Move reinitialisation of pushdown variables for every query, because it used now not only for derived tables.
This commit is contained in:
Oleksandr Byelkin
2019-04-02 15:04:45 +02:00
parent 6c306a729d
commit eb056f8726
5 changed files with 73 additions and 7 deletions
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4
sql/sql_prepare.cc
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@ -3026,6 +3026,10 @@ void reinit_stmt_before_use(THD *thd, LEX *lex)
for (order= win_spec->order_list->first; order; order= order->next)
order->item= &order->item_ptr;
}
// Reinit Pushdown
sl->cond_pushed_into_where= NULL;
sl->cond_pushed_into_having= NULL;
}
if (sl->changed_elements & TOUCHED_SEL_DERIVED)
{