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我有一个问题，我可以在 SQL Sever 管理工作室中运行查询，但是当我从 Mybatis 运行它时，相同的查询挂起。活动监视器显示由查询启动的许多进程，这些进程似乎通过许多 cxpacket 和 pageiolatch_sh 等待相互计时。

audit_player 表有 2.67 亿行，player 和 playerInfo 350,000 和货币 20。

关于可能导致这种情况的任何想法？

select 'INS' as typeOfChange,
   p.playerId as "model.id"
   from Player p       
INNER join         
   (select DISTINCT(playerId) as playerId          
     from Audit_Player          
     where modifiedDate > '2012-11-14 14:35:47' and action in ('INS', 'UPD') and tester = 0) ap 
on p.playerId = ap.playerId       
left outer join PlayerInfo i on i.playerId = p.playerId       
left outer join Currency c on c.curName = i.curName where c.curCode <> 'XXX'       
UNION       
 select 'DEL' as typeOfChange,
   playerId as "model.id"
 from Audit_Player       
 where modifiedDate > '2012-11-14 14:35:47' and action = 'DEL'
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