DB2 - Problembeschreibung
Problem IC96227 | Status: Geschlossen |
RUNSTATS WITH SYSTEM SAMPLING ON A COLUMN-ORGANIZED TABLE MIGHT PRODUCE AN INCORRECT COLCARD STATISTIC | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 | |
Problembeschreibung: | |
If you use the SYSTEM sampling option of the RUNSTATS command to collect statistics on a very large column-organized table, the COLCARD statistics computed might be incorrect for columns with a very large number of distinct values, approximately hundreds of millions or more. The following is an example RUNSTATS command using the SYSTEM sampling option: RUNSTATS ON TABLE T1 WITH DISTRIBUTION TABLESAMPLE SYSTEM(20) | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * All * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 10.5 Fix Pack 1 * **************************************************************** | |
Local-Fix: | |
You can avoid this problem by not using a sampling option in the RUNSTATS command. | |
verfügbare FixPacks: | |
DB2 Version 10.5 Fix Pack 3 for Linux, UNIX, and Windows | |
Lösung | |
Problem was first fixed in DB2 Version 10.5 Fix Pack 1 | |
Workaround | |
See Local Fix | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 25.09.2013 27.02.2014 27.02.2014 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
Problem behoben lt. FixList in der Version | |
10.5.0.3 | |
10.5.0.3 |