diff options
Diffstat (limited to 'sql/item_cmpfunc.h')
| -rw-r--r-- | sql/item_cmpfunc.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h index 21bc9796921..c19341c3ee1 100644 --- a/sql/item_cmpfunc.h +++ b/sql/item_cmpfunc.h @@ -284,6 +284,10 @@ public: void reset_cache() { cache= NULL; } }; + +/* + Functions and operators with two arguments that can use range optimizer. +*/ class Item_bool_func2 :public Item_bool_func { /* Bool with 2 string args */ public: @@ -351,16 +355,18 @@ public: }; /** - XOR inherits from Item_bool_func2 because it is not optimized yet. + XOR inherits from Item_bool_func because it is not optimized yet. Later, when XOR is optimized, it needs to inherit from Item_cond instead. See WL#5800. */ -class Item_func_xor :public Item_bool_func2 +class Item_func_xor :public Item_bool_func { public: - Item_func_xor(Item *i1, Item *i2) :Item_bool_func2(i1, i2) {} + Item_func_xor(Item *i1, Item *i2) :Item_bool_func(i1, i2) {} enum Functype functype() const { return XOR_FUNC; } const char *func_name() const { return "xor"; } + void print(String *str, enum_query_type query_type) + { Item_func::print_op(str, query_type); } longlong val_int(); Item *neg_transformer(THD *thd); bool subst_argument_checker(uchar **arg) |