Wrong Results Possible on 10.2 When New "HASH GROUP BY" Feature is Used (Doc ID 387958.1)

Last updated on DECEMBER 01, 2010

Applies to:

Oracle Server - Enterprise Edition - Version: 10.2.0.1 to 10.2.0.2 - Release: 10.2 to 10.2
Information in this document applies to any platform.
All queries with GROUP BYs clauses

Symptoms

Wrong results possible from the result of a non-distinct aggregation with a group by (such as sum(col)) when HASH GROUP BY is used.
Incorrect results from aggregation functions with a group by that uses the new "HASH GROUP BY" functionality.
The wrong results show as missing values from the aggregate.




Cause

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