Fixes are available
APAR status
Closed as program error.
Error description
Db2 query may show poor performance for queries having CDE tables since HASH join is not picked up for joins having OR predicate or range predicate and there is no equality predicate.
Local fix
Add dummy equality predicate to the query: nvl(mod(length(t1.col1),1),0) = nvl(mod(length(t2.col1),1),0)
Problem summary
**************************************************************** * USERS AFFECTED: * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * ****************************************************************
Problem conclusion
Temporary fix
Comments
APAR Information
APAR number
IT31145
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
2019-12-03
Closed date
2021-03-15
Last modified date
2021-03-15
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
RB10 PSY
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