执行SQL发生错误！错误：out of memory，语句：SELECT a.*,b.name as sortname,b.filename as sortfilename,b.outlink as sortoutlink,c.name as subsortname,c.filename as subfilename,d.type,d.name as modelname,d.urlname,e.*,f.gcode FROM ay_content a LEFT JOIN ay_content_sort b ON a.scode=b.scode LEFT JOIN ay_content_sort c ON a.subscode=c.scode LEFT JOIN ay_model d ON b.mcode=d.mcode LEFT JOIN ay_content_ext e ON a.id=e.contentid LEFT JOIN ay_member_group f ON a.gid=f.id WHERE(a.id='2300' OR a.filename='2300') AND(a.status=1) LIMIT 1