Fixes are available
Db2 Version 11.1 Mod 3 Fix Pack 3 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix002 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 6 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 5 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 7 for Linux, UNIX, and Windows
APAR status
Closed as program error.
Error description
Users might observe performance regression when upgrading from V9.7 and running queries with the following characteristics: 1. Queries contain NOT EXISTS or NOT IN predicates 2. Sub-queries in the NOT EXISTS or NOT IN predicates contain correlated sub-queries 3. The correlation sources of these correlated sub-queries are local to the NOT EXISTS or NOT IN sub-queries An example of such a query is: select p1 from p where not exists (select * -- This NOT EXISTS sub-query contains correlated sub-queries from (select * from a where exists (select 1 -- This correlated sub-query has correlation source from Table A which is local to the NOT EXISTS sub-query from b where b1=a1 order by b1) fetch first 1 row only) q where q.a2 = p.p1)
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * ALL * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to Db2 11.1 Mod 3 Fix Pack 3 or higher * ****************************************************************
Problem conclusion
First fixed in Db2 11.1 Mod 3 Fix Pack 3
Temporary fix
Comments
APAR Information
APAR number
IT22630
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
2017-10-02
Closed date
2018-03-22
Last modified date
2018-03-22
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 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