diff options
Diffstat (limited to 'sql/item.h')
| -rw-r--r-- | sql/item.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sql/item.h b/sql/item.h index 753e00df3dd..497c2c1d840 100644 --- a/sql/item.h +++ b/sql/item.h @@ -566,6 +566,12 @@ public: Field *make_string_field(TABLE *table); virtual bool fix_fields(THD *, Item **); /* + Fix after some tables has been pulled out. Basically re-calculate all + attributes that are dependent on the tables. + */ + virtual void fix_after_pullout(st_select_lex *new_parent, Item **ref) {}; + + /* should be used in case where we are sure that we do not need complete fix_fields() procedure. */ @@ -1542,6 +1548,7 @@ public: bool send(Protocol *protocol, String *str_arg); void reset_field(Field *f); bool fix_fields(THD *, Item **); + void fix_after_pullout(st_select_lex *new_parent, Item **ref); void make_field(Send_field *tmp_field); int save_in_field(Field *field,bool no_conversions); void save_org_in_field(Field *field); @@ -2310,6 +2317,7 @@ public: bool send(Protocol *prot, String *tmp); void make_field(Send_field *field); bool fix_fields(THD *, Item **); + void fix_after_pullout(st_select_lex *new_parent, Item **ref); int save_in_field(Field *field, bool no_conversions); void save_org_in_field(Field *field); enum Item_result result_type () const { return (*ref)->result_type(); } @@ -2486,6 +2494,7 @@ public: outer_ref->save_org_in_field(result_field); } bool fix_fields(THD *, Item **); + void fix_after_pullout(st_select_lex *new_parent, Item **ref); table_map used_tables() const { return (*ref)->const_item() ? 0 : OUTER_REF_TABLE_BIT; |