执行SQL发生错误！错误：Can't create/write to file '/tmp/#sql_4a3c_0.MYI' (Errcode: 28 - No space left on device)，语句：SELECT a.id,a.title,a.filename,a.ico,a.scode,b.filename as sortfilename,c.type,c.urlname FROM ay_content a LEFT JOIN ay_content_sort b ON a.scode=b.scode LEFT JOIN ay_model c ON b.mcode=c.mcode WHERE(a.id>182) AND a.scode='3' AND(a.acode='cn') AND(a.status=1) ORDER BY a.id ASC LIMIT 1