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Problem IC95338
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Status: Closed |
QUERIES USING OUTER JOINS AND SCALAR SUBQUERY RUNS SIGNIFICANTLY SLOWER COMPARING TO OUTER JOINS AND LOCAL PREDICATES |
| product: |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 |
| Problem description: |
When scalar subquery is used in a WHERE clause on a series of
Outer Joins, the scalar subquery is similar to a local predicate
that should be applied at the access of the table under the
Outer Joins
to early filter the rows. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Update to 10.5.0.3 *
**************************************************************** |
| Local Fix: |
|
| available fix packs: |
DB2 Version 10.5 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.5 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Cancun Release 10.5.0.4 (also known as Fix Pack 4) for Linux, UNIX, and Windows
DB2 Version 10.5 Fix Pack 9 for Linux, UNIX, and Windows
|
| Solution |
Problem Fixed In 10.5.0.3 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 27.08.2013
28.02.2014
28.02.2014 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 10.5.0.3
|
 |
| 10.5.0.3
|
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