home clear 64x64
en blue 200x116 de orange 200x116 info letter User
suche 36x36
Neueste VersionenFixList
11.1.0.7 FixList
10.5.0.9 FixList
10.1.0.6 FixList
9.8.0.5 FixList
9.7.0.11 FixList
9.5.0.10 FixList
9.1.0.12 FixList
Haben Sie Probleme? - Kontaktieren Sie uns.
Kostenlos registrieren anmeldung-x26
Kontaktformular kontakt-x26

DB2 - Problembeschreibung

Problem IC62473 Status: Geschlossen

THE SQL QUERY OPTIMIZER MAY ADD AN UNNECESSARY TABLE QUEUE OPERATION
UNDER CERTAIN CONDITIONS

Produkt:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problembeschreibung:
In a DPF environment, the optimizer may choose to perform an 
unnecessary table queue operation which may lead to a 
non-optimal query execution plan.  This can occur if a table 
that is hash partitioned across multiple database partitions is 
referenced in a statement with multiple joins, and the table's 
partitioning key is not of interest to the query.  For example, 
the partitioning key is not part of any join, nor a group by or 
order by clause.
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* ALL                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* In a DPF environment, the optimizer may choose to perform an * 
* unnecessary table queue operation which may lead to a        * 
* non-optimal query execution plan.  This can occur if a table * 
* that is hash partitioned across multiple database partitions * 
* is referenced in a statement with multiple joins, and the    * 
* table's partitioning key is not of interest to the query.    * 
* For example, the partitioning key is not part of any join,   * 
* nor a group by or order by clause                            * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade To DB2 Version 9.7 Fix Pack 3                        * 
****************************************************************
Local-Fix:
verfügbare FixPacks:
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows

Lösung
First Fixed In DB2 Version 9.7 Fix Pack 3
Workaround
keiner bekannt / siehe Local-Fix
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
11.08.2009
14.10.2010
14.10.2010
Problem behoben ab folgender Versionen (IBM BugInfos)
9.7.FP3
Problem behoben lt. FixList in der Version
9.7.0.3 FixList
9.7.0.3 FixList