diff options
Diffstat (limited to 'sql/field.cc')
| -rw-r--r-- | sql/field.cc | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sql/field.cc b/sql/field.cc index 862c40b847d..68fa0ffe140 100644 --- a/sql/field.cc +++ b/sql/field.cc @@ -1387,7 +1387,9 @@ bool Field::can_optimize_range(const Item_bool_func *cond, { DBUG_ASSERT(cmp_type() != TIME_RESULT); // Handled in Field_temporal DBUG_ASSERT(cmp_type() != STRING_RESULT); // Handled in Field_str descendants - return item->cmp_type() != TIME_RESULT; + return (item->cmp_type() != TIME_RESULT) && + !(item->type() == Item::SUBSELECT_ITEM && + ((Item_subselect *)item)->is_expensive()); } |