A fix is available
APAR status
Closed as program error.
Error description
Incorrect or missing distribution statistics collected in SYSCOLDIST_HIST catalog table by RUNSTATS UPDATE NONE HISTORY ALL.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * All DB2 12 for z/OS users of RUNSTATS or inline statistics * * collecting history statistics on partitioned objects with * * UPDATE NONE specified. * **************************************************************** * PROBLEM DESCRIPTION: * * HISTORY STATISTICS not collected when RUNSTATS UPDATE NONE * * HISTORY ALL was specified. * **************************************************************** * RECOMMENDATION: * * Apply corrective PTF when available * **************************************************************** When the user executed RUNSTATS UPDATE NONE HISTORY ALL on a partitioned table space, no cardinalities or frequency aggregate statistics were reported in MSGDSNU616I and stored in the SYSIBM.SYSCOLDIST_HIST catalog table. As RUNSTATS UPDATE NONE keywords was specified, no entries were stored in SYSIBM.SYSCOLDISTSTATS catalog table by the RUNSTATS utility. This resulted in aggregation processing failure to rollup the statistics and store the statistics in the SYSCOLDIST_HIST catalog table. For index on expression objects, no cardinality and frequency statistics were reported by DSNU1353I for SYSKEYTGTDIST catalog table when UPDATE NONE HISTORY ALL keywords were specified. This resulted in aggregation processing failure to rollup the statistics and store the statistics in the SYSKEYTGTDIST_HIST catalog table.
Problem conclusion
The design and code was changed to aggregate the statistics from the available in-memory blocks rather than from the SYSCOLDISTSTATS catalog table and store the statistics in the SYSCOLDIST_HIST catalog table regardless of UPDATE option specified. Code was also changed such that for index on expression objects, cardinality and frequency statistics will be reported by DSNU1353I for SYSKEYTGTDIST catalog table when UPDATE NONE HISTORY ALL keywords are specified. The collected statistics will be stored in SYSKEYTGTDIST_HIST catalog table.
Temporary fix
Comments
APAR Information
APAR number
PI67923
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
C10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-08-22
Closed date
2017-01-05
Last modified date
2017-02-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI43704
Modules/Macros
DSNUSAFQ DSNUSACR DSNUSAC1 DSNUSACD DSNUSAFK DSNUSAC2 DSNUSAFV
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
RC10 PSY UI43704
UP17/01/21 P F701
Fix is available
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Document Information
Modified date:
01 February 2017