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This commit is contained in:
Sergey Petrunya
2012-02-20 15:34:50 +04:00
parent 3ef46370e9 fecad7c945
commit bd86e37e9d
4 changed files with 52 additions and 1 deletions
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14
sql/sql_select.cc
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@ -10442,10 +10442,22 @@ return_zero_rows(JOIN *join, select_result *result, List<TABLE_LIST> &tables,
if (send_row)
{
/*
Set all tables to have NULL row. This is needed as we will be evaluating
HAVING condition.
*/
List_iterator<TABLE_LIST> ti(tables);
TABLE_LIST *table;
while ((table= ti++))
mark_as_null_row(table->table); // All fields are NULL
{
/*
Don't touch semi-join materialization tables, as the above join_free()
call has freed them (and HAVING clause can't have references to them
anyway).
*/
if (!table->is_jtbm())
mark_as_null_row(table->table); // All fields are NULL
}
if (having &&
!having->walk(&Item::clear_sum_processor, FALSE, NULL) &&
having->val_int() == 0)