操作数据库失败Can't create/write to file '/tmp/#sql_86c_0.MYI' (Errcode: 28 - No space left on device)
sql:select m.*,f.* from sfo_maintb as m left join sfo_school as f on f.id = m.id where m.id=f.id and m.verify=0 and m.category in (637) and m.lang='cn' order by f.paixu*1 asc,m.top desc, m.updatetime asc limit 0,15

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