Fixes are available
APAR status
Closed as program error.
Error description
If you have a DPF system and a query that meets the following conditions : - query references multiple Outer joins - predicates in the ON clause reference Cast functions it may trap in sqlnr_OJ_semi_join() Example query: SELECT T1.C1 FROM T1 LEFT OUTER JOIN T2 ON T2.C1 = 'ITRA' LEFT OUTER JOIN T3 ON T3.C1 = CAST(T1.C1 AS VARCHAR(200)) ; Example stack trace for the failing query: sqlnr_OJ_semi_join sqlnr_qrwprep_phase2 sqlnr_prep2_action sqlnr_exe sqlnn_cmpl
Local fix
Set the following registry - with the optimization guideline to the affected queries: /* <OPTGUIDELINES> <REGISTRY> <OPTION NAME='DB2COMPOPT' VALUE='NOOJSJ'/> </REGISTRY> </OPTGUIDELINES> */ or - at the instance level: db2set DB2COMPOPT=NOOJSJ -im
Problem summary
**************************************************************** * USERS AFFECTED: * * all * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to 11.5.6 or later * ****************************************************************
Problem conclusion
Upgrade to 11.5.6 or later
Temporary fix
Comments
APAR Information
APAR number
IT36320
Reported component name
DB2 FOR LUW
Reported component ID
DB2FORLUW
Reported release
B10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-03-23
Closed date
2022-04-18
Last modified date
2022-04-18
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
DB2 FOR LUW
Fixed component ID
DB2FORLUW
Applicable component levels
RB50 PSN
UP
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSEPGG","label":"DB2 for Linux- UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
Document Information
Modified date:
04 May 2022