DB2 FOR LUW / DB2FORLUW / 950 - DB2

DB2 generates SQL1224N error and crashes with Signal 11 
when 'LIKE' predicate is used on tables in database created with 
Unicode codeset and Culturally Correct Collation. 
 
The issue can be reproduced with the following test: 
 
 
create database caseins using codeset utf-8 territory ru collate 
using UCA500R1_LRU_S2 
create table test_like (name varchar(20)) in userspace1; 
insert into test_like values ('test'); 
 
insert into test_like values ('test'); 
 
db2 -td@ "begin declare p_par varchar(20) default '%t%';declare 
cnt int;set cnt = (select count(name) from test_like where name 
like p_par);end@" 
 
The following error gets generated: 
 
SQL1224N  The database manager is not able to accept new 
requests, has 
terminated all requests in progress, or has terminated the 
specified request 
because of an error or a forced interrupt.  SQLSTATE=55032 
 
For this error to occur, the following conditions should be met: 
 
1.  UTF database using a Culturally Correct Collation must be 
used 
2.  The table involved in the SQL statement including a LIKE 
predicate should contain more than 1 row 
 
A sample stack for the crash above is: 
 
sqlriCCCLikeFree 
sqlricls_complex 
sqlriCloseExecuteSection 
sqlrr_execute_immediate 
sqlrr_execimmd 
sqljs_ddm_excsqlimm 
sqljsParseRdbAccessed 
sqljsParse 
sqljsSqlam 
sqljsDriveRequests 
sqljsDrdaAsInnerDriver 
sqljsDrdaAsDriver 
sqeAgent::RunEDU 
sqzEDUObj::EDUDriver 
sqlzRunEDU 
sqloEDUEntry 
start_thread 
 
The error can be produced on any platform.

**************************************************************** 
* USERS AFFECTED:                                              * 
* All                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* The problem is due to incorrect pointer operations that      * 
* control link list of structures containing rows evaluated in * 
* select statements. It causes memory leak and eventually      * 
* segfault with Signal 11.                                     * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* None for 9.5 version. Upgrade to 9.7 Fix Pack 5.             * 
****************************************************************

No local fix available

Problem (APAR IC77121) will be fixed in version 9.7 Fix Pack 5

not known / see Local fix

Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :

24.06.2011
22.07.2011
22.07.2011

9.5.,
9.7.FP5