执行SQL发生错误！错误：Got error 28 from storage engine，语句：SELECT a.*,b.name as sortname,b.filename as sortfilename,c.name as subsortname,c.filename as subfilename,d.type,d.name as modelname,d.urlname,e.* 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 WHERE(a.scode in ('2','27','28','29','30','31','32','33','34','38') OR a.subscode='2') AND(a.status=1 AND d.type=2 AND a.date<'2022-08-13 20:54:36') AND(a.istop=1) ORDER BY a.date DESC,a.istop DESC,a.isrecommend DESC,a.isheadline DESC,a.sorting ASC,a.id DESC LIMIT 0,18