|
Problem IC79551
|
Status: Closed |
ADDING REDUNDANT JOINS TO FILTER ROWS OF AN OUTER JOIN OPERATOR MAY NOT OCCUR DUE TO AN ERROR IN THE ANALYSIS |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
A problem in the algorithm of the analysis may result in not
adding redundant joins to filter rows of an outer join operator.
This problem may occur when there are at least two outer joins.
Fixing this problem will improve the performance of the outer
joins and potentially the overall performance of the query. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 Version 9.7 Fix Pack 6. *
**************************************************************** |
| Local Fix: |
|
| available fix packs: |
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 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
First fixed in DB2 Version 9.7 Fix Pack 6. |
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC84205
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 01.11.2011
10.12.2012
10.12.2012 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP6
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.6
|
 |
