APAR status
Closed as program error.
Error description
A complex query (typically originated by Cognos) consisting of ansi joins and nested selects results in multiple assert failures and eventually crashes the engine. The most common assert failure which usually comes first has failure stack similar to the one below: afstack afhandler afcrash_interface mt_lock sapi_drain_mem sapi_destroy_mem relsdbmem doreleasesdb sqcmd sq_cmnd sq_prepare sqmain spawn_thread th_init_initgls startup
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * Users of 12.10.xC4. * **************************************************************** * PROBLEM DESCRIPTION: * * A complex query may result in server crash under the * * following conditions: * * - main query has one view (e.g. view1) or derived table * * that has UNION ALL in it, this view is folded * * - main query has another view (e.g. view2) or derived * * table that has UNION ALL in it, this view is materialized * * (e.g, used as subservient table in outer join) * * - the definition of the materialized view (view2 above) * * has in its definition a nested view(e.g. view3) or derived * * table, which is also materialized * **************************************************************** * RECOMMENDATION: * * Update to IDS-12.10.xC5 * ****************************************************************
Problem conclusion
Problem Fixed In IDS-12.10.xC5
Temporary fix
Comments
APAR Information
APAR number
IT05033
Reported component name
INFORMIX SERVER
Reported component ID
5725A3900
Reported release
C10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2014-10-20
Closed date
2015-10-16
Last modified date
2015-10-16
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
INFORMIX SERVER
Fixed component ID
5725A3900
Applicable component levels
RC10 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":"C10","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
Document Information
Modified date:
16 October 2015