DB2 - Problem description
Problem IT34382 | Status: Closed |
POOR PERFORMANCE WHEN IN-LIST TO JOIN CAUSING EARLY COMPENSATION | |
product: | |
DB2 FOR LUW / DB2FORLUW / B50 - DB2 | |
Problem description: | |
Db2 query may perform poorly when the following conditions are met: -There is at least one IN list with literals -The IN list is used in multiple joins or the left side of the IN predicate is equal to another col from a separate join -There is/are Column organized table(s) involved -The registry variable COL_IN2JOIN is enabled | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * **************************************************************** | |
Local Fix: | |
N/A | |
Solution | |
Workaround | |
**************************************************************** * USERS AFFECTED: * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * **************************************************************** | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 28.09.2020 02.10.2020 02.10.2020 |
Problem solved at the following versions (IBM BugInfos) | |
Problem solved according to the fixlist(s) of the following version(s) |