DB2 - Problem description
Problem IT38833 | Status: Closed |
DB2 QUERY PLAN DOES NOT CHOOSE INDEX WHEN IN PREDICATE HAS PARAMETER MARKER. | |
product: | |
DB2 FOR LUW / DB2FORLUW / B50 - DB2 | |
Problem description: | |
Db2 query plan may not choose index and show poor performance when the following conditions are met: - There is an IN predicate as subterm of OR - The other subterm of OR has IS NULL predicate - IS NULL predicate is on parameter marker | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * all * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to 11.5 FP7 or later * **************************************************************** | |
Local Fix: | |
Solution | |
Workaround | |
**************************************************************** * USERS AFFECTED: * * all * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to 11.5 FP7 or later * **************************************************************** | |
Comment | |
Upgrade to 11.5 FP7 or later | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 27.10.2021 22.11.2021 22.11.2021 |
Problem solved at the following versions (IBM BugInfos) | |
Problem solved according to the fixlist(s) of the following version(s) |