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Problem IT20440
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Status: Closed |
IN DPF, WHEN UNIQUE TQ IS PRESENT IN THE PLAN AND SPECIAL INTERNAL PERF OPT IS HAPPENING, POSSIBLE DUPLICATE VALUES RETURNED
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| product: |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 |
| Problem description: |
In DPF environment when UNIQUE TQ is present in the plan and
Special Internal Performance optimization is happening, it is
possible to get unexpected duplicate values returned. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* See workarounds. *
**************************************************************** |
| Local Fix: |
Any one of these registry variables will work around the issue:
db2set DB2_SPILL=NO_HINTS
db2set DB2_SORT_AFTER_TQ=YES
db2set DB2_TCG_DEFAULT_OPTIONS=set disable_pushdown on |
| Solution |
|
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner :
follow-up : IT20517 IT20518 |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 03.05.2017
11.05.2017
11.05.2017 |
| Problem solved at the following versions (IBM BugInfos) |
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| Problem solved according to the fixlist(s) of the following version(s) |
