SELECT * FROM (SELECT * FROM g5_write_wellps WHERE wr_id = wr_parent ORDER by wr_id desc) as a WHERE wr_is_comment = '0' and wr_8 = '1' and wr_ingi <> '9' and wr_id not in (5,1) GROUP by a.wr_hospital ORDER by wr_num limit 0, 7

1054 : Unknown column 'a.wr_hospital' in 'group statement'

error file : /new/bbs/board.php