Fixes are available
APAR status
Closed as program error.
Error description
If Query has a Plan where UNION has a leg with Index Scan on a Columnar Table, then it is possible to get incorrect result. Example problem portion of the Plan: UNION | /-------+-------\ TBSCAN FETCH from /----+-----\ Table A IXSCAN CO-TABLE: Table B | INDEX: Index_Table_B
Local fix
db2set DB2_REDUCED_OPTIMIZATION="COL_IXSCAN_ALL_V1133 OFF" -im option can be used, BUT Static sql will need to be reboud and already compiled dynamic sql re-compiled as well.
Problem summary
**************************************************************** * USERS AFFECTED: * * COLUMNAR TABLES WITH INDEXES ONLY * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Please, See Error Description and Install this Fix. * ****************************************************************
Problem conclusion
Please, See Error Description and Install this Fix.
Temporary fix
Comments
APAR Information
APAR number
IT28596
Reported component name
DB2 FOR LUW
Reported component ID
DB2FORLUW
Reported release
B10
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-03-27
Closed date
2019-11-29
Last modified date
2019-11-29
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