dz2.5升级到3.2后所有帖子打开报错 It is not safe to do this query

前几天从2.5升级到3.2，升级的时候 提示全部语句需要后台数据库通过SQL手工导入，而且得去掉升级SQL语句的那个指定存储引擎MYISAM才升级成功了！但是目前发现所有帖子打开都报截图那个错误，请问怎么回事呢！

[size=14.666666984558105px]0) It is not safe to do this queryselect iplandnum,ijoinednum from ( SELECT COUNT(tid) as iplandnum FROM forum_thread WHERE special =4 and authorid = 1401 )as a ,(SELECT COUNT(uid) as ijoinednum FROM forum_activityapply WHERE uid = 1401 )as b

后台校验一下数据库是否正常，升级按照这里方法进行升级https://discuz.dismall.com/thread-3570835-1-1.html