BUG: Query w/ Group by All Can Take Too Long to Complete |
Q151408
The time a query takes to produce output can be too long when using join(s)
between two or more tables and a GROUP BY ALL. The scan count and
physical IO count are extremely high. The tables involved in the join have
lots of duplicate data in the column involved and does not have any
indexes.
Testing has shown that the situation under which this problem has
been encountered is narrow in scope, and the problem can be reproduced only
with the provided replication data.
Reduce the duplicates and create appropriate index(s) to reduce the amount of time to produce the output.
Microsoft has confirmed this to be a problem in Microsoft SQL Server
Version 6.0. We are researching this problem and will post new information
here in the Microsoft Knowledge Base as it becomes available.
This problem does not happen in SQL Server 6.5.
Keywords : kbusage
Issue type :
Technology : kbSQLServSearch kbAudDeveloper kbSQLServ600
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