|
Problem IC75414
|
Status: Closed |
REDISTRIBUTE UPDATES TABLE PACKED DESCRIPTOR AND OVERWRITES UPDATES OF RUNSTATS |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
On the statistics collection during REDISTRIBUTE, after RUNSTATS
updates the catalogs with
a) external catalog statistics and
b) a table packed descriptor (PD) with statistics,
REDISTRIBUTE modifies the table packed descriptor to change the
partition map.
This subsequent update wipes out the changes to the PD that
RUNSTATS did, resulting in incorrect internal packed descriptor
statistics.
Although the external SYSCAT.TABLES cardinality statistics will
be correct, the incorrect internal packed descriptor will affect
the query compiler estimates. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* This fix has been moved to DB2 V10.1 Fix Pack 1. *
**************************************************************** |
| Local Fix: |
Gather new statistics after REDISTIRBUTE finished. |
| Solution |
|
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC84263
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 30.03.2011
27.06.2012
27.06.2012 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
