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MDEV-8330 Get rid of Item_func::select_optimize() and Item_func::optimize_type

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This commit is contained in:
Alexander Barkov 2015-06-28 14:29:51 +04:00
commit ee0237fe89
5 changed files with 41 additions and 24 deletions
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19
sql/item_cmpfunc.h
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@ -290,14 +290,14 @@ public:
*/
class Item_bool_func2 :public Item_bool_func
{ /* Bool with 2 string args */
bool have_rev_func() const { return rev_functype() != UNKNOWN_FUNC; }
public:
Item_bool_func2(Item *a,Item *b)
:Item_bool_func(a,b) { }
optimize_type select_optimize() const { return OPTIMIZE_OP; }
virtual enum Functype rev_functype() const { return UNKNOWN_FUNC; }
bool have_rev_func() const { return rev_functype() != UNKNOWN_FUNC; }
bool is_null() { return MY_TEST(args[0]->is_null() || args[1]->is_null()); }
SEL_TREE *get_mm_tree(RANGE_OPT_PARAM *param, Item **cond_ptr);
COND *remove_eq_conds(THD *thd, Item::cond_result *cond_value,
bool top_level);
bool count_sargable_conds(uchar *arg);
@ -592,7 +592,6 @@ public:
longlong val_int();
enum Functype functype() const { return NE_FUNC; }
cond_result eq_cmp_result() const { return COND_FALSE; }
optimize_type select_optimize() const { return OPTIMIZE_KEY; }
const char *func_name() const { return "<>"; }
Item *negated_item();
void add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level,
@ -643,7 +642,6 @@ public:
Item_func_between(Item *a, Item *b, Item *c)
:Item_func_opt_neg(a, b, c), compare_as_dates(FALSE) { }
longlong val_int();
optimize_type select_optimize() const { return OPTIMIZE_KEY; }
enum Functype functype() const { return BETWEEN; }
const char *func_name() const { return "between"; }
bool fix_fields(THD *, Item **);
@ -1334,8 +1332,6 @@ public:
}
DBUG_VOID_RETURN;
}
optimize_type select_optimize() const
{ return OPTIMIZE_KEY; }
void add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level,
table_map usable_tables, SARGABLE_PARAM **sargables);
SEL_TREE *get_mm_tree(RANGE_OPT_PARAM *param, Item **cond_ptr);
@ -1383,9 +1379,9 @@ class Item_func_null_predicate :public Item_bool_func
{
public:
Item_func_null_predicate(Item *a) :Item_bool_func(a) { }
optimize_type select_optimize() const { return OPTIMIZE_NULL; }
void add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level,
table_map usable_tables, SARGABLE_PARAM **sargables);
SEL_TREE *get_mm_tree(RANGE_OPT_PARAM *param, Item **cond_ptr);
CHARSET_INFO *compare_collation() const
{ return args[0]->collation.collation; }
void fix_length_and_dec() { decimals=0; max_length=1; maybe_null=0; }
@ -1495,6 +1491,7 @@ class Item_func_like :public Item_bool_func2
DTCollation cmp_collation;
String cmp_value1, cmp_value2;
bool with_sargable_pattern() const;
public:
int escape;
@ -1508,7 +1505,6 @@ public:
{
Item_func::print_op(str, query_type);
}
optimize_type select_optimize() const;
CHARSET_INFO *compare_collation() const
{ return cmp_collation.collation; }
cond_result eq_cmp_result() const
@ -1548,6 +1544,12 @@ public:
}
void add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level,
table_map usable_tables, SARGABLE_PARAM **sargables);
SEL_TREE *get_mm_tree(RANGE_OPT_PARAM *param, Item **cond_ptr)
{
return with_sargable_pattern() ?
Item_bool_func2::get_mm_tree(param, cond_ptr) :
Item_func::get_mm_tree(param, cond_ptr);
}
const char *func_name() const { return "like"; }
bool fix_fields(THD *thd, Item **ref);
void fix_length_and_dec()
@ -1930,7 +1932,6 @@ public:
enum Functype functype() const { return MULT_EQUAL_FUNC; }
longlong val_int();
const char *func_name() const { return "multiple equal"; }
optimize_type select_optimize() const { return OPTIMIZE_EQUAL; }
void sort(Item_field_cmpfunc compare, void *arg);
void fix_length_and_dec();
bool fix_fields(THD *thd, Item **ref);