mysql插入不能用select into outfile？

mysql> insert into helpme set user=(select 0x616361 into outfile 'c://windows//temp//test.ini');
Database changed

mysql> select * from helpme;
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------+
| user                                                                                                                                                                                                                                    | id    |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------+
| a                                                                                                                                                                                                                                       |     1 |                                                                                                                                                                                                                                  | 37833 |
| aca                                                                                                                                                                                                                                     | 37834 |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------+
2 rows in set
mysql> insert into helpme set user=(select 0x61