A fix is available
APAR status
Closed as program error.
Error description
ABEND 04E 00E70005 DSNXOMB M020 ( -20 ) due to invalid predicate category number set during access path selection for sargable predicate.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All DB2 for z/OS users whose queries contain * * join predicates. * **************************************************************** * PROBLEM DESCRIPTION: ABEND04E RC00E70005 DSNXOMB M020 may * * occur due to an incorrect internal * * setting of a duplicated join predicate. * **************************************************************** * RECOMMENDATION: * **************************************************************** ABEND04E RC00E70005 DSNXOMB M020 may occur because of an incorrect internal setting of a duplicated join predicate. For example: SELECT * FROM T1 LEFT JOIN T2 ON T1.C1 = T2.C1 AND T1.C2 = T2.C2 AND T1.C1 = T2.C1; where the join predicate T1.C1=T2.C1 has a duplicate, and DB2 may have an incorrect internal setting of the duplicated join predicate which may cause the abend. Additional Keywords: ABEND04E RC00E70005 DSNXOMB M020 SQLACCESSPATH
Problem conclusion
Code is changed to correct ABEND04E RC00E70005 DSNXOMB M020 for the situation described above. As with any change to DB2 query optimization that can drive a different access path, there is some risk of query performance regression.
Temporary fix
Comments
APAR Information
APAR number
PM26356
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
910
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-11-09
Closed date
2011-04-29
Last modified date
2011-06-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK67284
Modules/Macros
DSNXOGP
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
R910 PSY UK67284
UP11/05/17 P F105
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEPEK","label":"Db2 for z\/OS"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.1","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
02 June 2011