Discuz! info: MySQL Query Error

Time: 2025-5-9 7:11pm
Script: /forumdisplay.php

SQL1: SELECT t.* FROM [Table]threads t
WHERE t.fid='9' AND t.displayorder IN (0, 1)
ORDER BY t.displayorder DESC, t.lastpost DESC
LIMIT 897, 50
Error: Error writing file 'C:\Users\mysql\AppData\Local\Temp\MY30CA.tmp' (Errcode: 28)
Errno.: 3

Similar error report has beed dispatched to administrator before.