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Problem IT39950
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Status: Closed |
IN RARE JOIN ON COLUMNAR TABLES COULD LOOSE ROWS
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| product: |
DB2 FOR LUW / DB2FORLUW / B50 - DB2 |
| Problem description: |
In rare cases CDE JOIN on columnar tables could loose rows.
It can only happen if a NULL value is entering the join code in
a certain order with other values.
It can only happen if we are going through a specific
optimization codepath.
The issue will not be easily repeatable and depends on the order
in which data comes into the join. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* Columnar engine users *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Db2 v11.5.7.1 *
**************************************************************** |
| Local Fix: |
n/a |
| Solution |
|
| Workaround |
****************************************************************
* USERS AFFECTED: *
* Columnar engine users *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Db2 v11.5.7.1 *
**************************************************************** |
| Comment |
Db2 v11.5.7.1 will contain the fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 14.02.2022
09.03.2022
09.03.2022 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
