|
Problem IT36441
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Status: Closed |
DB2 QUERY PERFORMS BAD WHEN USING SUBQUERY PREDICATE WITH OR
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| product: |
DB2 FOR LUW / DB2FORLUW / B50 - 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: *
* Db2 Version 11.5 *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Description. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to 11.5.6 or later *
**************************************************************** |
| Local Fix: |
/* */ |
| Solution |
|
| Workaround |
****************************************************************
* USERS AFFECTED: *
* Db2 Version 11.5 *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Description. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to 11.5.6 or later *
**************************************************************** |
| Comment |
Upgrade to 11.5.6 or later |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 01.04.2021
08.06.2021
21.06.2021 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
