|
Problem IT22505
|
Status: Closed |
DB2 MAY INCORRECTLY RETURN SQL0420N WHILE COMPILING A QUERY CONTAINING UNION ALL OPERATORS |
| product: |
DB2 FOR LUW / DB2FORLUW / B10 - DB2 |
| Problem description: |
DB2 may incorrectly return SQL0420N while compiling a query
containing one or more UNION ALL operators.
The UNION ALL operator(s) can either be as part of the main
query or within subqueries. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* See Local Fix or upgrade to DB2 11.1 Mod 3 Fix Pack 3 *
**************************************************************** |
| Local Fix: |
1. Rewrite the query to avoid using UNION ALL operators.
Or:
2. Set the current registry variable via db2set:
db2set -im DB2COMPOPT=NO_DEEPKEYPU
Or for specific queries by using the following REGISTRY
optimizer guideline:
<OPTGUIDELINES>
<REGISTRY><OPTION NAME='DB2COMPOPT' VALUE='NO_DEEPKEYPU'/>
</REGISTRY>
</OPTGUIDELINES> |
| available fix packs: |
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 |
Fixed in DB2 11.1 Mod 3 Fix Pack 3 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 22.09.2017
15.03.2018
15.03.2018 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
