APAR status
Closed as program error.
Error description
A remote query with outer join and sub-query will crash the engine in remote_scan_create function. Here is the stack: 0x0896a000 (oninit)afstack () 0x0896d56f (oninit)mt_ex_throw_sig() 0x0893e4ca (oninit)afsig_handler() 0x08294dba (oninit)remote_scan_create() 0x082a5705 (oninit)it_create() 0x08494de5 (oninit)group_create() 0x082a56d2 (oninit)it_create() 0x082a880a (oninit)prepselect() 0x082dd87f (oninit)subqprep() 0x082a2896 (oninit)scan_next() 0x084942e5 (oninit)join_next() 0x082b7b21 (oninit)sort_open() 0x082a8b7d (oninit)prepselect() 0x083b7244 (oninit)open_cursor() 0x083c8e92 (oninit)sql_open() 0x083c8eee (oninit)sq_open () 0x0843da51 (oninit)sqmain () 0x089c7cbe (oninit)spawn_thread() 0x0894b6de (oninit)startup ()
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * Users of 11.50 and earlier versions. * **************************************************************** * PROBLEM DESCRIPTION: * * ISTAR queries involving joining a local table and a remote * * table may result in server crash during query execution if * * the following conditions are met: * * - the remote table has a composite index * * - an "IN <subquery>" or "= ANY <subquery>" predicate is on * * an index column * * - the subquery involves tables on the same remote server as * * the remote table in the main query * * - a join column (with a local table) is on a different * * index column * **************************************************************** * RECOMMENDATION: * * Upgrade to 11.50.xC7. * ****************************************************************
Problem conclusion
The problem is fixed in 11.50.xC7.
Temporary fix
Comments
APAR Information
APAR number
IC65928
Reported component name
IBM IDS ENTRP E
Reported component ID
5724L2304
Reported release
B15
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-01-28
Closed date
2010-10-01
Last modified date
2010-10-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
IBM IDS ENTRP E
Fixed component ID
5724L2304
Applicable component levels
RB15 PSN
UP
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSGU8G","label":"Informix Servers"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"B15","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
Document Information
Modified date:
01 October 2010