SQL: SELECT t.*, p.rate, p.pid FROM [Table]threads t
LEFT JOIN [Table]posts p USING(tid, dateline)
WHERE t.fid='3' AND subject LIKE '%学校%' AND t.displayorder IN (0, 1, 2, 3)
ORDER BY t.displayorder DESC, t.lastpost DESC
LIMIT 0, 20
Error: Column: 'subject' in where clause is ambiguous
Errno.: 1052
Similar error report has beed dispatched to administrator before.
啥回事?