diff options
Diffstat (limited to 'sql/item_strfunc.h')
| -rw-r--r-- | sql/item_strfunc.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/sql/item_strfunc.h b/sql/item_strfunc.h index cff9fdee072..eb084c3f58d 100644 --- a/sql/item_strfunc.h +++ b/sql/item_strfunc.h @@ -1630,6 +1630,7 @@ public: DERIVATION_COERCIBLE, MY_REPERTOIRE_ASCII); fix_char_length(MY_UUID_STRING_LENGTH); } + bool const_item() const { return false; } table_map used_tables() const { return RAND_TABLE_BIT; } const char *func_name() const{ return "uuid"; } String *val_str(String *); @@ -1750,5 +1751,25 @@ public: { return get_item_copy<Item_func_dyncol_list>(thd, this); } }; -#endif /* ITEM_STRFUNC_INCLUDED */ +/* + this is used by JOIN_TAB::keep_current_rowid + and stores handler::position(). + It has nothing to do with _rowid pseudo-column, that the parser supports. +*/ +class Item_temptable_rowid :public Item_str_func +{ +public: + TABLE *table; + Item_temptable_rowid(TABLE *table_arg); + const Type_handler *type_handler() const { return &type_handler_string; } + Field *create_tmp_field(bool group, TABLE *table) + { return create_table_field_from_handler(table); } + String *val_str(String *str); + enum Functype functype() const { return TEMPTABLE_ROWID; } + const char *func_name() const { return "<rowid>"; } + void fix_length_and_dec(); + Item *get_copy(THD *thd) + { return get_item_copy<Item_temptable_rowid>(thd, this); } +}; +#endif /* ITEM_STRFUNC_INCLUDED */ |