diff options
Diffstat (limited to 'sql/item_cmpfunc.h')
| -rw-r--r-- | sql/item_cmpfunc.h | 104 |
1 files changed, 103 insertions, 1 deletions
diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h index 5789186dbe8..3d688223bcf 100644 --- a/sql/item_cmpfunc.h +++ b/sql/item_cmpfunc.h @@ -26,6 +26,7 @@ #include "item_func.h" /* Item_int_func, Item_bool_func */ #define PCRE_STATIC 1 /* Important on Windows */ #include "pcre.h" /* pcre header file */ +#include "item.h" extern Item_result item_cmp_type(Item_result a,Item_result b); inline Item_result item_cmp_type(const Item *a, const Item *b) @@ -124,6 +125,7 @@ public: comparators= 0; } friend class Item_func; + friend class Item_bool_rowready_func2; }; @@ -243,6 +245,8 @@ public: Item_func_istrue(THD *thd, Item *a): Item_func_truth(thd, a, true, true) {} ~Item_func_istrue() {} virtual const char* func_name() const { return "istrue"; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_istrue>(thd, mem_root, this); } }; @@ -257,6 +261,8 @@ public: Item_func_truth(thd, a, true, false) {} ~Item_func_isnottrue() {} virtual const char* func_name() const { return "isnottrue"; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_isnottrue>(thd, mem_root, this); } }; @@ -270,6 +276,8 @@ public: Item_func_isfalse(THD *thd, Item *a): Item_func_truth(thd, a, false, true) {} ~Item_func_isfalse() {} virtual const char* func_name() const { return "isfalse"; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_isfalse>(thd, mem_root, this); } }; @@ -284,6 +292,8 @@ public: Item_func_truth(thd, a, false, false) {} ~Item_func_isnotfalse() {} virtual const char* func_name() const { return "isnotfalse"; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_isnotfalse>(thd, mem_root, this); } }; @@ -345,6 +355,8 @@ public: void fix_after_pullout(st_select_lex *new_parent, Item **ref); bool invisible_mode(); void reset_cache() { cache= NULL; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_in_optimizer>(thd, mem_root, this); } }; @@ -498,6 +510,17 @@ public: return add_key_fields_optimize_op(join, key_fields, and_level, usable_tables, sargables, false); } + Item *build_clone(THD *thd, MEM_ROOT *mem_root) + { + Item_bool_rowready_func2 *clone= + (Item_bool_rowready_func2 *) Item_func::build_clone(thd, mem_root); + if (clone) + { + clone->cmp.comparators= 0; + } + return clone; + } + }; /** @@ -520,6 +543,8 @@ public: Item_args::propagate_equal_fields(thd, Context_boolean(), cond); return this; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_xor>(thd, mem_root, this); } }; class Item_func_not :public Item_bool_func @@ -536,6 +561,8 @@ public: Item *neg_transformer(THD *thd); bool fix_fields(THD *, Item **); virtual void print(String *str, enum_query_type query_type); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_not>(thd, mem_root, this); } }; class Item_maxmin_subselect; @@ -583,6 +610,8 @@ public: void add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level, table_map usable_tables, SARGABLE_PARAM **sargables); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_trig_cond>(thd, mem_root, this); } }; class Item_func_not_all :public Item_func_not @@ -658,6 +687,8 @@ public: uint in_equality_no; virtual uint exists2in_reserved_items() { return 1; }; friend class Arg_comparator; + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_eq>(thd, mem_root, this); } }; class Item_func_equal :public Item_bool_rowready_func2 @@ -680,6 +711,8 @@ public: return add_key_fields_optimize_op(join, key_fields, and_level, usable_tables, sargables, true); } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_equal>(thd, mem_root, this); } }; @@ -694,6 +727,8 @@ public: cond_result eq_cmp_result() const { return COND_TRUE; } const char *func_name() const { return ">="; } Item *negated_item(THD *thd); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_ge>(thd, mem_root, this); } }; @@ -708,6 +743,8 @@ public: cond_result eq_cmp_result() const { return COND_FALSE; } const char *func_name() const { return ">"; } Item *negated_item(THD *thd); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_gt>(thd, mem_root, this); } }; @@ -722,6 +759,8 @@ public: cond_result eq_cmp_result() const { return COND_TRUE; } const char *func_name() const { return "<="; } Item *negated_item(THD *thd); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_le>(thd, mem_root, this); } }; @@ -736,6 +775,8 @@ public: cond_result eq_cmp_result() const { return COND_FALSE; } const char *func_name() const { return "<"; } Item *negated_item(THD *thd); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_lt>(thd, mem_root, this); } }; @@ -759,6 +800,8 @@ public: Item *negated_item(THD *thd); void add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level, table_map usable_tables, SARGABLE_PARAM **sargables); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_ne>(thd, mem_root, this); } }; @@ -839,6 +882,8 @@ public: cond); return this; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_between>(thd, mem_root, this); } }; @@ -857,6 +902,8 @@ public: agg_arg_charsets_for_comparison(cmp_collation, args, 2); fix_char_length(2); // returns "1" or "0" or "-1" } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_strcmp>(thd, mem_root, this); } }; @@ -887,6 +934,8 @@ public: str->append(func_name()); print_args(str, 0, query_type); } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_interval>(thd, mem_root, this); } }; @@ -909,6 +958,8 @@ public: } const char *func_name() const { return "coalesce"; } table_map not_null_tables() const { return 0; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_coalesce>(thd, mem_root, this); } }; @@ -958,6 +1009,8 @@ public: { return Item_func_case_abbreviation2::decimal_precision2(args); } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_ifnull>(thd, mem_root, this); } }; @@ -981,6 +1034,8 @@ public: const char *func_name() const { return "if"; } bool eval_not_null_tables(uchar *opt_arg); void fix_after_pullout(st_select_lex *new_parent, Item **ref); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_if>(thd, mem_root, this); } private: void cache_type_info(Item *source); }; @@ -1047,6 +1102,8 @@ public: cond, &args[2]); return this; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_nullif>(thd, mem_root, this); } }; @@ -1230,7 +1287,6 @@ public: item_dec->set_decimal_value(dec); } Item_result result_type() { return DECIMAL_RESULT; } - }; @@ -1488,6 +1544,19 @@ public: CHARSET_INFO *compare_collation() const { return cmp_collation.collation; } void cleanup(); Item* propagate_equal_fields(THD *thd, const Context &ctx, COND_EQUAL *cond); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_case>(thd, mem_root, this); } + Item *build_clone(THD *thd, MEM_ROOT *mem_root) + { + Item_func_case *clone= (Item_func_case *) Item_func::build_clone(thd, mem_root); + if (clone) + { + clone->case_item= 0; + clone->arg_buffer= 0; + bzero(&clone->cmp_items, sizeof(cmp_items)); + } + return clone; + } }; /* @@ -1584,6 +1653,18 @@ public: bool eval_not_null_tables(uchar *opt_arg); void fix_after_pullout(st_select_lex *new_parent, Item **ref); bool count_sargable_conds(uchar *arg); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_in>(thd, mem_root, this); } + Item *build_clone(THD *thd, MEM_ROOT *mem_root) + { + Item_func_in *clone= (Item_func_in *) Item_func::build_clone(thd, mem_root); + if (clone) + { + clone->array= 0; + bzero(&clone->cmp_items, sizeof(cmp_items)); + } + return clone; + } }; class cmp_item_row :public cmp_item @@ -1678,6 +1759,8 @@ public: bool top_level); table_map not_null_tables() const { return 0; } Item *neg_transformer(THD *thd); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_isnull>(thd, mem_root, this); } }; /* Functions used by HAVING for rewriting IN subquery */ @@ -1723,6 +1806,8 @@ public: Item *neg_transformer(THD *thd); virtual void print(String *str, enum_query_type query_type); void top_level_item() { abort_on_null=1; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_isnotnull>(thd, mem_root, this); } }; @@ -1862,6 +1947,9 @@ public: void cleanup(); bool find_selective_predicates_list_processor(uchar *arg); + + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_like>(thd, mem_root, this); } }; @@ -1967,6 +2055,8 @@ public: longlong val_int(); void fix_length_and_dec(); const char *func_name() const { return "regexp"; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_regex>(thd, mem_root, this); } virtual inline void print(String *str, enum_query_type query_type) { @@ -1994,6 +2084,8 @@ public: longlong val_int(); void fix_length_and_dec(); const char *func_name() const { return "regexp_instr"; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_regexp_instr>(thd, mem_root, this); } }; @@ -2071,6 +2163,7 @@ public: Item *compile(THD *thd, Item_analyzer analyzer, uchar **arg_p, Item_transformer transformer, uchar *arg_t); bool eval_not_null_tables(uchar *opt_arg); + Item *build_clone(THD *thd, MEM_ROOT *mem_root); }; template <template<class> class LI, class T> class Item_equal_iterator; @@ -2243,6 +2336,7 @@ public: void set_context_field(Item_field *ctx_field) { context_field= ctx_field; } void set_link_equal_fields(bool flag) { link_equal_fields= flag; } + Item* get_copy(THD *thd, MEM_ROOT *mem_root) { return 0; } friend class Item_equal_fields_iterator; bool count_sargable_conds(uchar *arg); friend class Item_equal_iterator<List_iterator_fast,Item>; @@ -2388,6 +2482,8 @@ 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); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_cond_and>(thd, mem_root, this); } }; inline bool is_cond_and(Item *item) @@ -2412,6 +2508,8 @@ public: table_map not_null_tables() const { return and_tables_cache; } Item *copy_andor_structure(THD *thd); Item *neg_transformer(THD *thd); + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_cond_or>(thd, mem_root, this); } }; class Item_func_dyncol_check :public Item_bool_func @@ -2420,6 +2518,8 @@ public: Item_func_dyncol_check(THD *thd, Item *str): Item_bool_func(thd, str) {} longlong val_int(); const char *func_name() const { return "column_check"; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_dyncol_check>(thd, mem_root, this); } }; class Item_func_dyncol_exists :public Item_bool_func @@ -2429,6 +2529,8 @@ public: Item_bool_func(thd, str, num) {} longlong val_int(); const char *func_name() const { return "column_exists"; } + Item *get_copy(THD *thd, MEM_ROOT *mem_root) + { return get_item_copy<Item_func_dyncol_exists>(thd, mem_root, this); } }; inline bool is_cond_or(Item *item) |