diff options
Diffstat (limited to 'sql/sql_select.cc')
| -rw-r--r-- | sql/sql_select.cc | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 06776f5f7b3..526b926d66d 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -12658,7 +12658,10 @@ static int test_if_order_by_key(ORDER *order, TABLE *table, uint idx, one row). The sorting doesn't matter. */ if (key_part == key_part_end && reverse == 0) + { + *used_key_parts= 0; DBUG_RETURN(1); + } } else DBUG_RETURN(0); @@ -13155,7 +13158,8 @@ test_if_skip_sort_order(JOIN_TAB *tab,ORDER *order,ha_rows select_limit, select_limit= table_records; if (group) { - rec_per_key= keyinfo->rec_per_key[used_key_parts-1]; + rec_per_key= used_key_parts ? keyinfo->rec_per_key[used_key_parts-1] + : 1; set_if_bigger(rec_per_key, 1); /* With a grouping query each group containing on average |