DB2 - Problem description
Problem IT19030 | Status: Closed |
DB2 MAY DEPICT PERFORMANCE DESCRIPTION WHEN IS NOT NULL AND IN/LIKE PREDICATE ARE USED | |
product: | |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 | |
Problem description: | |
DB2 may depict performance degradation when the following conditions are satisfied: 1. The query has multiple joins 2. There is an IS NOT NULL predicate 3. There is an IN/LIKE predicate using the same column used in IS NOT NULL predicate | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * All users * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 V10.5 FP10 or higher * **************************************************************** | |
Local Fix: | |
Use optimization level 3 in the optimization guideline: /* */; | |
Solution | |
Workaround | |
not known / see Local fix | |
BUG-Tracking | |
forerunner : follow-up : IT19881 | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 30.01.2017 19.07.2018 19.07.2018 |
Problem solved at the following versions (IBM BugInfos) | |
Problem solved according to the fixlist(s) of the following version(s) |