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Problem IC97793
|
Status: Closed |
INCORRECT RESULT IN UNICODE DB WITH LIKE PREDICATE AND FULLWIDTH UNDERSCORE WILD CHARACTER ON A CLOB COLUMN |
| product: |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 |
| Problem description: |
In a unicode database, running a query might return incorrect
results if it contains a like predicate against a clob column,
and the pattern to match contains a fullwidth underscore wild
character (X'EFBCBF').
For example:
create table tbl1 ( id int, cclob20oct clob(20))
insert into tbl1 values (1, X'F094AE8041')
select id from tbl1 where cclob20oct like X'F094AE80EFBCBF'
ID
-----------
0 record(s) selected.
<-- incorrect result returns : the matching row is not returned.
Recall that the fullwidth underscore is a wildcard character.
See the Information Center for details. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All users *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 version 10.1.0.4. *
**************************************************************** |
| Local Fix: |
Use halfwidth underscore character (X'5F') instead of a
fullwidth underscore character (X'EFBCBF'). |
| available fix packs: |
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows
|
| Solution |
The problem is first fixed in DB2 version 10.1.0.4. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 20.11.2013
08.05.2014
26.05.2014 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 10.1.0.4
|
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