diff options
Diffstat (limited to 'sql/sql_select.cc')
| -rw-r--r-- | sql/sql_select.cc | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 76cad16de28..0d47aee9882 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -14543,15 +14543,18 @@ static int compare_fields_by_table_order(Item *field1, { int cmp= 0; bool outer_ref= 0; - Item_field *f1= (Item_field *) (field1->real_item()); - Item_field *f2= (Item_field *) (field2->real_item()); - if (field1->const_item() || f1->const_item()) + Item *field1_real= field1->real_item(); + Item *field2_real= field2->real_item(); + + if (field1->const_item() || field1_real->const_item()) return -1; - if (field2->const_item() || f2->const_item()) + if (field2->const_item() || field2_real->const_item()) return 1; + Item_field *f1= (Item_field *) field1_real; + Item_field *f2= (Item_field *) field2_real; if (f1->used_tables() & OUTER_REF_TABLE_BIT) { - outer_ref= 1; + outer_ref= -1; cmp= -1; } if (f2->used_tables() & OUTER_REF_TABLE_BIT) |