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Message Posted: Tue, 06 Mar 2007 @ 09:16:11 GMT

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Subj:   Re: Performance of a self join
From:   Goutham P

Thanks all for your reply.

Given below is my query:

     select        A.*
             ,Value2 / sum(Value2) over (partition by A.dim1, A.dim2, A.dim3,
     A.dim4) as value3
     from         A,
              select        dim1
                     ,metric 1/count(metric 2) as value2
             from        A
             group by 1,2,3,4,5
     ) B
     where        A.dim1 = B.dim1
     and        A.dim2 = B.dim2
     and        A.dim3 = B.dim3
     and        A.dim4 = B.dim4
     and        A.dim5 = B.dim5
     and        A.dim6 = B.dim6

The PI of the table is only dim 1, dim2

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