DB2 - Problem description
| Problem IC96244 | Status: Closed |
PAGE_FETCH_PAIRS AND AVGPARTITION_PAGE_FETCH_PAIRS STATISTICS CA NNOT BE CLEARED BY MANUAL UPDATE IF VARCHAR2 COMPATIBILITY IS ON | |
| product: | |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 | |
| Problem description: | |
Page fetch pairs statistics are collected when DETAILED index statistics are collected. In a database with varchar2 compatibility enabled, the PAGE_FETCH_PAIRS and AVGPARTITION_PAGE_FETCH_PAIRS statistics cannot be cleared by manual update of SYSSTAT.INDEXES. Typically, users might try to clear the statistics with either a zero-length string or a single blank string. In both cases, DB2 will return an error, either SQL0407N or SQL1227N. You might experience this problem when trying to use db2look in mimic mode on a database with varchar2 compatibility enabled. | |
| Problem Summary: | |
| Local Fix: | |
To clear the index statistics, perform a runstats without
DETAILED index statistics, for example,
RUNSTATS ON TABLE TEST.T1 WITH DISTRIBUTION AND INDEXES ALL
If you have a -m db2look mimic output file you want to apply,
1) replace the table-only runstats command with one that also
collects basic index statistics
2) replace PAGE_FETCH_PAIRS='' with PAGE_FETCH_PAIRS=' '
3) replace AVGPARTITION_PAGE_FETCH_PAIRS='' with
AVGPARTITION_PAGE_FETCH_PAIRS=' '
For example,
replace occurrences of:
RUNSTATS ON TABLE "TEST "."T3" ;
PAGE_FETCH_PAIRS='',
AVGPARTITION_PAGE_FETCH_PAIRS='',
with:
RUNSTATS ON TABLE "TEST "."T3" AND INDEXES ALL ;
PAGE_FETCH_PAIRS=' ',
AVGPARTITION_PAGE_FETCH_PAIRS=' ', | |
| available fix packs: | |
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows | |
| Solution | |
| Workaround | |
not known / see Local fix | |
| Comment | |
This APAR is a duplicate of IC97821 | |
| Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 25.09.2013 24.12.2013 09.06.2014 |
| Problem solved at the following versions (IBM BugInfos) | |
| Problem solved according to the fixlist(s) of the following version(s) | |
| 10.1.0.3 |
|
| 10.1.0.3 |
|