|
Problem IC74894
|
Status: Closed |
INSTANCE MAY ABEND DURING EXECUTION OF A QUERY THAT CONTAINS A NULL CONSTANT USED IN A RELATIONAL OPERATOR PREDICATE |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
Instance may abend during execution of a query that contains a
NULL constant equated with an atomic (non-function) expression.
Specifically, following conditions need to occur for such a
scenario:
- Query contains at least 2 relational operator (RELOP)
predicates
- Both RELOPs need to be equality predicates
- The NULL constant is used in both RELOPs
- The other expressions used in both RELOPs are also atomic
expressions
- The data types of the other 2 expressions are incompatible |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 Version 9.7 Fix Pack 5 or later. *
**************************************************************** |
| Local Fix: |
Ensure that the query is well-formed, since a query which has a
NULL constant equated to anything will typically always be a
false query, i.e., such a query will always return zero records. |
| available fix packs: |
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 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 5. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 07.03.2011
08.12.2011
08.12.2011 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP5
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.5
|
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