DB2 - Problembeschreibung
| Problem IC89701 | Status: Geschlossen |
CREATE INDEX COLLECT STATISTICS CAN GENERATE INCORRECT EXTERNAL INDEX STATISTICS | |
| Produkt: | |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 | |
| Problembeschreibung: | |
The COLLECT STATISTICS option of the CREATE INDEX statement can
generate incorrect external index statistics for:
- AVGLEAFKEYSIZE and AVGNLEAFKEYSIZE,
- AVGPARTITION_CLUSTERRATIO, for non-partitioned indexes in
partitioned table
- DATAPARTITION_CLUSTERFACTOR, when the table is not a
partitioned table
which are visible in the SYSCAT.INDEXES catalog view.
AVGLEAFKEYSIZE and AVGNLEAFKEYSIZE are used by the REORGCHK
utility, and its recommendations might be affected by incorrect
statistics.
AVGPARTITION_CLUSTERRATIO and DATAPARTITION_CLUSTERFACTOR are
statistics collected for the query optimizer. While unexpected
statistics values might be visible in the external catalogs, the
optimizer is not affected as it uses statistics stored in
internal descriptors. | |
| Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * ALL users on DB2 V101 FP2 and earlier * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 V101 FP3 * **************************************************************** | |
| Local-Fix: | |
Execute RUNSTATS after the CREATE INDEX. | |
| verfügbare FixPacks: | |
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows | |
| Lösung | |
First Fixed in DB2 v101 FP3 | |
| Workaround | |
keiner bekannt / siehe Local-Fix | |
| Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 22.01.2013 01.10.2013 01.10.2013 |
| Problem behoben ab folgender Versionen (IBM BugInfos) | |
| Problem behoben lt. FixList in der Version | |
| 10.1.0.3 |
|
| 10.1.0.3 |
|