|
Problem IC90798
|
Status: Closed |
INCORRECT RESULTS MIGHT BE RETURNED FOR THE SELECT QUERY INVOLVING THE AGGREGATION FUNCTION WITH THE OLAP WINDOW FUNCTION |
| product: |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 |
| Problem description: |
The problem occurs when the aggregation function is used with
the OLAP Window function. The following is an example of the
aggregation function used with the OLAP Window function:
(AGGREGATION_FUNCTION (columnX) OVER (ORDER BY .... ROWS
UNBOUNDED PRECEDING)
This problem might also occur with any other OVER
window-partition-clause.
This problem only occurs in DB2 Version 10.1 and only when
Partial Early Aggregation is chosen in the plan. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All users *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 version 10.1.0.3. *
**************************************************************** |
| Local Fix: |
Use the DB2_REDUCED_OPTIMIZATION=NO_PEA registry variable to
pick plans that avoid the issue. |
| available fix packs: |
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows
|
| Solution |
The problem is first fixed in DB2 version 10.1.0.3. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 12.03.2013
27.09.2013
27.09.2013 |
| 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
|
|
