索引视图和T-sql，它们与SQL Server 2008 R2中的DISTINCT具有相同的结果

Select 
    o.Theme_ID as Theme_ID,
    DATEADD(day, DATEDIFF(day, 0, o.Object_CreationDate), 0) as Objext_CreationDate,
    Count_BIG(*) as ObjectCount,   o.Object_Tonality from [dbo].Object o
inner join [dbo].Theme t on o.Theme_ID = t.Theme_ID
inner join [dbo].[ThemeWorkplace] tw on t.Theme_ID = tw.Theme_ID
inner join [dbo].Workplace w on w.Workplace_ID = tw.Workplace_ID
 ... where t.Theme_DeletedMark = 0
 AND (w.Workplace_AccessType = 1 OR w.Workplace_AccessType = 8)
 AND Object_DeletedMark = 0 ...
 Group BY o.Theme_ID,o.Object_Tonality, DATEADD(day, DATEDIFF(day, 0, o.Object_CreationDate), 0)

ThemeWorkplace

Theme_ID

GROUP BY

Object_Count

Object_Count

Theme_ID

ThemeWorkplace

DISTINCT