APAR status
Closed as program error.
Error description
When a Query has Functional predicate with LIKE operator, then it does not use Functional Index and makes optimizer to choose bad plan for the query. And thus causing high CPU utilization and Performance problem.
Local fix
Workaround: use OPTCOMPIND=0
Problem summary
**************************************************************** * USERS AFFECTED: * * Users of Informix Server prior to 12.10.xC16 and 14.10.xC8. * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to Informix Server 12.10.xC16Â or 14.10.xC8. * ****************************************************************
Problem conclusion
Fixed in Informix Server 12.10.xC16 and 14.10.xC8.
Temporary fix
Comments
APAR Information
APAR number
IT39508
Reported component name
INFORMIX SERVER
Reported component ID
5725A3900
Reported release
E10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-12-28
Closed date
2022-04-08
Last modified date
2023-05-08
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
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSGU8G","label":"Informix Servers"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"E10","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
Document Information
Modified date:
08 May 2023