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Problem IT32992
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Status: Closed |
WRONG RESULT, WHEN OPTIMIZATION LEVEL IS LESS THAN 5 AND NULL EQUALS NULL PREDICATE
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| product: |
DB2 FOR LUW / DB2FORLUW / B50 - DB2 |
| Problem description: |
Db2 query may generate wrong result when optimization level is
less than 5 and there is a null
equals null predicate of form c1 = c2 OR c1 is null AND c2 is
null |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* Rowstore *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Db2 11.5.5.0 or higher *
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| Local Fix: |
|
| Solution |
|
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner :
follow-up : IT33004 |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 27.05.2020
20.11.2020
20.11.2020 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
