diff options
Diffstat (limited to 'sql/item_subselect.h')
| -rw-r--r-- | sql/item_subselect.h | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/sql/item_subselect.h b/sql/item_subselect.h index dfe3287615b..363dbba4ddd 100644 --- a/sql/item_subselect.h +++ b/sql/item_subselect.h @@ -197,7 +197,7 @@ public: const_item_cache= 0; forced_const= TRUE; } - virtual void fix_length_and_dec(); + virtual bool fix_length_and_dec(); table_map used_tables() const; table_map not_null_tables() const { return 0; } bool const_item() const; @@ -306,7 +306,7 @@ public: bool val_bool(); bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate); const Type_handler *type_handler() const; - void fix_length_and_dec(); + bool fix_length_and_dec(); uint cols() const; Item* element_index(uint i) { return reinterpret_cast<Item*>(row[i]); } @@ -404,7 +404,7 @@ public: bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate) { return get_date_from_int(ltime, fuzzydate); } bool fix_fields(THD *thd, Item **ref); - void fix_length_and_dec(); + bool fix_length_and_dec(); void print(String *str, enum_query_type query_type); bool select_transformer(JOIN *join); void top_level_item() { abort_on_null=1; } @@ -627,7 +627,7 @@ public: void print(String *str, enum_query_type query_type); enum precedence precedence() const { return CMP_PRECEDENCE; } bool fix_fields(THD *thd, Item **ref); - void fix_length_and_dec(); + bool fix_length_and_dec(); void fix_after_pullout(st_select_lex *new_parent, Item **ref, bool merge); bool const_item() const { @@ -808,7 +808,7 @@ public: void set_thd(THD *thd_arg); THD * get_thd() { return thd ? thd : current_thd; } virtual int prepare(THD *)= 0; - virtual void fix_length_and_dec(Item_cache** row)= 0; + virtual bool fix_length_and_dec(Item_cache** row)= 0; /* Execute the engine @@ -849,7 +849,7 @@ public: virtual int get_identifier() { DBUG_ASSERT(0); return 0; } virtual void force_reexecution() {} protected: - void set_row(List<Item> &item_list, Item_cache **row); + bool set_row(List<Item> &item_list, Item_cache **row); }; @@ -865,7 +865,7 @@ public: Item_subselect *item); void cleanup(); int prepare(THD *thd); - void fix_length_and_dec(Item_cache** row); + bool fix_length_and_dec(Item_cache** row); int exec(); uint cols() const; uint8 uncacheable(); @@ -901,7 +901,7 @@ public: Item_subselect *item); void cleanup(); int prepare(THD *); - void fix_length_and_dec(Item_cache** row); + bool fix_length_and_dec(Item_cache** row); int exec(); uint cols() const; uint8 uncacheable(); @@ -959,7 +959,7 @@ public: ~subselect_uniquesubquery_engine(); void cleanup(); int prepare(THD *); - void fix_length_and_dec(Item_cache** row); + bool fix_length_and_dec(Item_cache** row); int exec(); uint cols() const { return 1; } uint8 uncacheable() { return UNCACHEABLE_DEPENDENT_INJECTED; } @@ -1108,7 +1108,7 @@ public: TODO: factor out all these methods in a base subselect_index_engine class because all of them have dummy implementations and should never be called. */ - void fix_length_and_dec(Item_cache** row);//=>base class + bool fix_length_and_dec(Item_cache** row);//=>base class void exclude(); //=>base class //=>base class bool change_result(Item_subselect *si, @@ -1381,7 +1381,7 @@ public: uint count_columns_with_nulls_arg); int prepare(THD *thd_arg) { set_thd(thd_arg); return 0; } int exec(); - void fix_length_and_dec(Item_cache**) {} + bool fix_length_and_dec(Item_cache**) { return FALSE; } uint cols() const { /* TODO: what is the correct value? */ return 1; } uint8 uncacheable() { return UNCACHEABLE_DEPENDENT; } void exclude() {} |