DB2 - Problem description
Problem IT39950 | Status: Closed |
IN RARE JOIN ON COLUMNAR TABLES COULD LOOSE ROWS | |
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) |