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DB2 - Problem description

Problem IT04161 Status: Closed

DB2 MIGHT ABEND WHEN EXECUTING QUERY CONTAINING A SUBSELECT WITH REDUNDANT
PREDICATES

product:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problem description:
Under rare scenarios, DB2 might abend if the following 
conditions are true: 
 
1) The query contains one or more subqueries. The subquery can 
be of the form EXISTS, NOT EXISTS, etc. 
2) The subquery contains one or more correlated predicates 
3) Atleast one of the correlated predicate in the subquery can 
be proven to be redundant due to a check constraint, tautology 
predicates, etc. 
4) The subquery and the correlated column reference the same 
view or common table expression.
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* All                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 version 970 fixpack 10                        * 
****************************************************************
Local Fix:
Remove the redundant predicate
Solution
Problem is fixed in DB2 version 970 fixpack 10
Workaround
not known / see Local fix
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
03.09.2014
29.01.2015
29.01.2015
Problem solved at the following versions (IBM BugInfos)
9.7.0
Problem solved according to the fixlist(s) of the following version(s)
9.7.0.10 FixList