DB2 FOR LUW / DB2FORLUW / A10 - DB2

Under rare scenarios, DB2 might return a SQL0901N error message 
if the following conditions are satisfied: 
Scenario 1: 
1. Query has an OR predicate 
2. One of the subterms contains a complex expression with a 
negation. 
eg. NOT CAST (cast('abcd' as CHAR(188)) AS CHARACTER (188)) >= 
TRANSLATE(CAST (cast('xyz' as CHAR(87)) AS CHAR (87))) 
 
Scenario 2: 
1. The query has a case expression as one of the output columns 
2. The case expression contains a complex expression with a 
negation. 
eg. 
SELECT 
CASE 
WHEN NOT CAST (cast('abcd' as CHAR(188)) AS CHARACTER (188)) >= 
SUBSTR (CAST (cast('xyz' as CHAR(87)) AS CHAR (87)), 82, 1) 
THEN c1 
ELSE c1 end 
from t1; 
 
Error Message: 
SQL0901N: Bad Plan; Unresolved QNC found 
 
 
Stack: 
sqlng_process_parse_tree_node 
sqlng_process_BF_node 
sqlng_process_parse_tree_node 
sqlng_process_BF_node 
sqlng_process_parse_tree_node 
sqlng_process_BF_node 
sqlng_walk_BF_chain 
sqlng_build_thread 
sqlng_build_TA_op 
sqlng_process_f_iscan 
sqlng_process_fetch_op

**************************************************************** 
* USERS AFFECTED:                                              * 
* All                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Please upgrade to DB2 version 101 fix pack 3                 * 
****************************************************************

Manually rewrite the query to perform De Morgan's Law

DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
 DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
 DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
 DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows
 

Fix was included in DB2 version 101 fix pack 3

keiner bekannt / siehe Local-Fix

Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:

09.01.2013
07.10.2013
07.10.2013