|
Problem IT19998
|
Status: Closed |
ENABLE CDE DATA-SKIPPING FOR QUERIES LIKE " WHERE PARTS_NO LIKE 'ABC%' " |
| product: |
DB2 FOR LUW / DB2FORLUW / B10 - DB2 |
| Problem description: |
LIKE predicates with pattern ending with wildcard e.g. 'ABC%'
cannot be used for synopsis table scan in CDE, which may cause
performance degradation. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 11.1 Mod 2 Fix Pack 2 or higher *
**************************************************************** |
| Local Fix: |
Rewrite the query by replacing the LIKE predicate with twin
range predicates. |
| available fix packs: |
DB2 Version 11.1 Mod 2 Fix Pack 2 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod2 Fix Pack2 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod2 Fix Pack2 iFix002 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 3 Fix Pack 3 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix002 for Linux, UNIX, and Windows
|
| Solution |
First fixed in DB2 11.1 Mod 2 Fix Pack 2 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 31.03.2017
23.06.2017
23.06.2017 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
