Discuz! info: MySQL Query Error

Time: 2018-4-24 2:52pm
Script: /index.php

SQL: SELECT t.tid,t.fid,t.readperm,t.author,t.authorid,t.subject,t.dateline,t.lastpost,t.lastposter,t.views,t.replies,t.highlight,t.digest,t.typeid,t.sortid
,a.remote,a.attachment,a.thumb,a.aid ,p.message FROM `[Table]threads` t LEFT JOIN `[Table]posts` p ON p.tid=t.tid AND p.first='1' INNER JOIN `[Table]attachments` a ON a.tid=t.tid WHERE t.readperm='0'
AND a.isimage IN ('1', '-1') AND a.readperm='0' AND a.price='0'
AND t.displayorder>='0'
AND t.fid>'0'
GROUP BY a.tid
ORDER BY t.lastpost DESC
LIMIT 0,2;
Error: Error writing file 'C:\WINDOWS\TEMP\MYB7D3.tmp' (Errcode: 28)
Errno.: 3

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