DB2 FOR LUW / DB2FORLUW / A50 - DB2

An outer join query may return incorrect results when all of the 
following conditions are satisfied: 
- The registry variable DB2COMPOPT is set to list that includes 
OJLOCALPRDPLANNING either explicitly or implicitly by setting 
the DB2_WORKLOAD registry variable to 1C or PUREDATA_OLAP 
- There is a predicate in the ON clause of the JOIN operator 
that references only columns from the row preserving side of the 
join operands 
- The access plan of the query has a partial GROUP BY operator 
on the row preserving operand of the outer join operator

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* USERS AFFECTED:                                              * 
* All                                                          * 
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* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
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* RECOMMENDATION:                                              * 
* Upgrade to DB2 Version 10.5 Fix Pack 5 or later.             * 
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Use the DB2_REDUCED_OPTIMIZATION=NO_PEA registry variable to 
pick plans that avoid the issue.

Problem has been fixed in DB2 Version 10.5 Fix Pack 5.

not known / see Local fix

Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :

20.10.2014
15.12.2014
09.04.2015