diff options
Diffstat (limited to 'sql/item_cmpfunc.h')
| -rw-r--r-- | sql/item_cmpfunc.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h index fa715badfc7..f467efd0e10 100644 --- a/sql/item_cmpfunc.h +++ b/sql/item_cmpfunc.h @@ -227,6 +227,7 @@ public: bool fix_length_and_dec() { decimals=0; max_length=1; return FALSE; } uint decimal_precision() const { return 1; } bool need_parentheses_in_default() { return true; } + bool predicate_selectivity_checker(void *arg) { return TRUE; } }; @@ -418,6 +419,7 @@ public: COND *remove_eq_conds(THD *thd, Item::cond_result *cond_value, bool top_level); bool count_sargable_conds(void *arg); + bool predicate_selectivity_checker(void *arg); /* Specifies which result type the function uses to compare its arguments. This method is used in equal field propagation. @@ -936,6 +938,7 @@ public: bool find_not_null_fields(table_map allowed); void fix_after_pullout(st_select_lex *new_parent, Item **ref, bool merge); bool count_sargable_conds(void *arg); + bool predicate_selectivity_checker(void *arg); void add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level, table_map usable_tables, SARGABLE_PARAM **sargables); @@ -2473,6 +2476,7 @@ public: bool find_not_null_fields(table_map allowed); void fix_after_pullout(st_select_lex *new_parent, Item **ref, bool merge); bool count_sargable_conds(void *arg); + bool predicate_selectivity_checker(void *arg); Item *get_copy(THD *thd) { return get_item_copy<Item_func_in>(thd, this); } Item *build_clone(THD *thd) @@ -2570,6 +2574,7 @@ public: return FALSE; } bool count_sargable_conds(void *arg); + bool predicate_selectivity_checker(void *arg); }; @@ -2813,6 +2818,7 @@ public: Item *get_copy(THD *thd) { return get_item_copy<Item_func_like>(thd, this); } + bool predicate_selectivity_checker(void *arg); }; @@ -3220,6 +3226,8 @@ public: uint elements_count() { return equal_items.elements; } friend class Item_equal_fields_iterator; bool count_sargable_conds(void *arg); + bool predicate_selectivity_checker(void *arg); + bool is_statistics_available_for_range_predicates(); Item *multiple_equality_transformer(THD *thd, uchar *arg); friend class Item_equal_iterator<List_iterator_fast,Item>; friend class Item_equal_iterator<List_iterator,Item>; @@ -3371,6 +3379,7 @@ public: SEL_TREE *get_mm_tree(RANGE_OPT_PARAM *param, Item **cond_ptr); Item *get_copy(THD *thd) { return get_item_copy<Item_cond_and>(thd, this); } + bool predicate_selectivity_checker(void *arg) { return FALSE; } }; inline bool is_cond_and(Item *item) @@ -3395,6 +3404,7 @@ public: Item *neg_transformer(THD *thd); Item *get_copy(THD *thd) { return get_item_copy<Item_cond_or>(thd, this); } + bool predicate_selectivity_checker(void *arg) { return FALSE; } }; class Item_func_dyncol_check :public Item_bool_func |