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DB2 - Problem description

Problem IC84779 Status: Closed

DB2 MIGHT ABEND WHEN EXECUTING EXISTENTIAL SUBQUERIES WITH ROWNUM PREDICATE

product:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problem description:
DB2 supports usage of ROWNUM olap function in a predicate 
context when DB2_COMPATIBILITY_VECTOR is set. 
Under rare scenario when this might be used with a existential 
subquery this can lead to a DB2 abend. 
 
<Stack Trace> 
0        ossDumpStackTraceEx 
1        OSSTrapFile::dumpEx 
2        OSSTrapFile::dump 
3        sqlo_trce 
4        sqloEDUCodeTrapHandler 
5        __pthread_mutex_cond_lock 
6        sqlno_analyze_countingSQ 
7        sqlno_analyze_pred_expr 
8        sqlno_assign_optprd 
9        sqlno_assign_prd 
10       sqlno_call_sf 
11       sqlno_each_opr 
12       sqlno_call_sf 
13       sqlno_assign_walk_quns_and_ff 
14       sqlno_call_sf 
15       sqlno_each_opr 
16       sqlno_call_sf 
17       sqlno_top_qtb 
18       sqlno_call_sf 
19       sqlno_each_qur 
20       sqlno_call_sf 
21       sqlno_scan_qgm 
22       sqlno_prep_phase 
23       sqlno_exe 
24       sqlnn_cmpl 
25       sqlnn_cmpl 
26       sqlra_compile_var 
27       sqlra_find_var 
28       sqlra_get_var 
29       sqlrr_prepare 
30       sqljs_ddm_prpsqlstt 
31       sqljsParseRdbAccessed 
32       sqljsParse 
33       sqljsSqlam 
34       sqljsDriveRequests 
35       sqljsDrdaAsInnerDriver 
36       sqljsDrdaAsDriver 
37       sqeAgent::RunEDU 
38       sqzEDUObj::EDUDriver 
39       sqlzRunEDU 
40       sqloEDUEntry 
41       pthread_create@@GLIBC_2.2.5 
42       clone
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* All                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 970 fixpack 7                                 * 
****************************************************************
Local Fix:
available fix packs:
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows

Solution
Problem fixed in DB2 970 fixpack 7
Workaround
not known / see Local fix
BUG-Tracking
forerunner  : APAR is sysrouted TO one or more of the following: IC85198 
follow-up : 
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
20.06.2012
05.12.2012
05.12.2012
Problem solved at the following versions (IBM BugInfos)
9.7.0
Problem solved according to the fixlist(s) of the following version(s)
9.7.0.7 FixList