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Message Posted: Tue, 30 Jan 2001 @ 19:42:29 GMT

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Subj:   V2R4 count(distinct) bug?
From:   Michael McIntire

I do not have access to the on-line call logs, can someone do a search for me? I think I have found a problem with count(distinct mycollumn), which returns the wrong result:

select CId, count(distinct PId)
from Transaction
group by CId
having count(distinct PId) > 1
order by 2 desc

This query produces results roughly 3 times the values of the same query in MSSQLServer 7.0. We have also decomposed the query into separate queries with temp tables and a derived query, and found the expected results - which match those on SQL Server 7.

Has anyone run into this?

Michael McIntire

Release: V2R.

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