vista indizada y T-SQL que dan los mismos resultados a diferencia de SQL Server 2008 R2

Question

Quiero crear vista indizada MyView con tal de T-SQL

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)

Este T-SQL funciona bien y permite establecer un índice agrupado en MyView .

El problema es que la tabla ThemeWorkplace contiene varios registros con Theme_ID misma. Y aunque yo uso GROUP BY - me pongo en valor Object_Count que
es igual a: (valor Object_Count real) * recuento (Theme_ID en ThemeWorkplace).

No se puede utilizar la palabra DISTINCT en T-SQL, ya que en este caso es imposible crear el índice a la vista.

¿Qué es una sugerencia para obtener resultados correctos en mi opinión?

Answer 1

As you've noted, there are significant restrictions on creating an indexed view. The techniques that might help you here, such as distinct or a subquery are prohibited. I think you'll need to sacrifice materializing the view in this particular case.