select distinct wr_parent_id from _md_board_author where (1) and ( (INSTR(LOWER(), LOWER('8')) > 0) ) and (wr_num between '-95' and '9905')

1064 : You have an error in your SQL syntax near '), LOWER('8')) > 0) ) and (wr_num between '-95' and '9905') ' at line 1