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Problem IC85221
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Status: Closed |
SQL WITH NESTED MATH OPERATIONS ON COLUMNS THAT ARE DEFINED WITH NOT NULL AND USING FUNCTIONS MAY RETURNED DIFFERENT RESULTS. |
| product: |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 |
| Problem description: |
Incorrect results are possible when doing nested math operations
on columns that are defined with NOT NULL and using functions.
Example (pseudo-code):
create function3(col1 bigint,col2 bigint)
{
return function1(col1)-function2(col2);
}
SELECT SUM(function3(column1,column2)) from table;
<-- intermittent incorrect results are possible on databases
with smaller non-automatic SORTHEAP. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All users *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 version 10.1.0.1. *
**************************************************************** |
| Local Fix: |
select SUM(col1) - SUM(col2) from table |
| available fix packs: |
DB2 Version 10.1 Fix Pack 1 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 2 for Linux, UNIX, and Windows
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
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| Solution |
The problem is first fixed in DB2 version 10.1.0.1. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 10.07.2012
13.09.2012
07.12.2012 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 10.1.0.1
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 |
| 10.5.0.1
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