执行SQL发生错误!错误:Unknown column 'b.urlname' in 'field list',语句:SELECT scode,a.*,b.type,b.urlname FROM ay_content_sort a LEFT JOIN ay_model b ON a.mcode=b.mcode WHERE(a.acode='cn') AND(a.status=1) ORDER BY a.pcode,a.sorting,a.id
程序版本:2.0.2, 操作系统:Linux, WEB应用:Apache/2.4.41 (Unix)