diff options
Diffstat (limited to 'sql/item_cmpfunc.h')
| -rw-r--r-- | sql/item_cmpfunc.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h index 6186d4a78f8..08a411ae39a 100644 --- a/sql/item_cmpfunc.h +++ b/sql/item_cmpfunc.h @@ -1045,12 +1045,18 @@ public: */ in_vector *array; bool have_null; + /* + true when all arguments of the IN clause are of compatible types + and can be used safely as comparisons for key conditions + */ + bool arg_types_compatible; Item_result left_result_type; cmp_item *cmp_items[5]; /* One cmp_item for each result type */ DTCollation cmp_collation; Item_func_in(List<Item> &list) - :Item_func_opt_neg(list), array(0), have_null(0) + :Item_func_opt_neg(list), array(0), have_null(0), + arg_types_compatible(FALSE) { bzero(&cmp_items, sizeof(cmp_items)); allowed_arg_cols= 0; // Fetch this value from first argument |