sql2008 很奇怪的一个sql问题

Question

改成这样：SELECT     UserId,
 UserName,
                                
                                SUM(Amount) AS allBuyMoney,
  
                      FROM      Cp_PrintOut WITH ( NOLOCK )
                      WHERE     1 = 1
                      AND ReceiveTime BETWEEN '2013-12-01 0:00:00'
                                                AND     '2014-1-5 0:00:00'
                                AND Status >2
option(hash group)

Answer 1

这个是查询提示，用于修改sql server，产生相应的执行计划