select distinct wr_parent from g4_write_health_goods_18 where ((INSTR(LOWER(wr_subject7C7Cwr_content7C7Cwr_97C7Cwr_related), LOWER('MS50'))) ) and (wr_num between '-19' and '9981')
1054 : Unknown column 'wr_subject7C7Cwr_content7C7Cwr_97C7Cwr_related' in 'where clause'
