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sqlclarify
Yak Posting Veteran
56 Posts |
 Posted - 2009-05-10 : 02:55:58
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| Does adding distincts to a query interfere with partition by..?I have a queryselectcol1,col2sum col3 over (partition by col1)from etc.etc.which works fine if I don't add distinct to the select clause. But if I add distinct I get strange results. Does partition by get executed last in the query. Just curious. |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2009-05-10 : 03:23:15
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| partition by takes sum after grouping on the specified field (col1). putting a distinct on select will cause only distinct combinations of records to be returned. what difference are you observing? can you be specific on that by giving some data sample? |
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partition by distincts