执行SQL发生错误！错误：Can't create/write to file '/tmp/#sql_86a_0.MYI' (Errcode: 28)，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.*,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_member_group f ON a.gid=f.id LEFT JOIN ay_content_ext e ON a.id=e.contentid WHERE(a.scode in ('4','21','80','85','22','82','83','24','79','39','54','61','86','87','88','89','62','84','63','105','113','64','95','102','65','66','101','110','67','91','92','93','99','106','107','114','68','69','94','108','70','96','103','71','90','112','72','75','97','104','109','76','100','111','77','98') OR a.subscode='4') AND(a.status=1 AND d.type=2 AND a.date<'2021-11-30 18:10:22') AND(a.isrecommend=0) ORDER BY RAND() LIMIT 0,30