|
Problem IT33038
|
Status: Closed |
DB2 QUERY PERFORMS BAD WHEN USING SUBQUERY PREDICATE WITH OR
|
| product: |
DB2 FOR LUW / DB2FORLUW / B10 - DB2 |
| Problem description: |
Db2 query may perform bad when the following conditions are met:
The query has OR predicate
There is one or more local predicates as OR subterm
There is one or more subquery (e.g. IN/EXISTS) predicates as
OR subterm
There are multiple tables and/or joins involved on the from
clause on which the OR predicate applies
Subquery predicates do not access all tables and/or joins
involved |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Apply 11.1 Fixpack XXX to the server *
**************************************************************** |
| Local Fix: |
/* */ |
| Solution |
|
| Workaround |
LOCAL FIX |
| BUG-Tracking |
forerunner :
follow-up : IT36441 |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 01.06.2020
03.02.2021
03.02.2021 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
