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Informix - Problem description

Problem IT39508 Status: Closed

QUERY WITH FUNCTIONAL PREDICATE WITH LIKE OPERATOR DOES NOT USE FUNCTIONAL
INDEX AT ALL

product:
INFORMIX SERVER / 5725A3900 / E10 - 
Problem 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.
Problem Summary:
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server prior to 14.10.xC8.                 *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 14.10.xC8.                        *
****************************************************************
Local Fix:
Workaround:
use OPTCOMPIND=0
Solution
Workaround
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server prior to 14.10.xC8.                 *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 14.10.xC8.                        *
****************************************************************
Comment
Fixed in Informix Server 14.10.xC8.
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
28.12.2021
08.04.2022
08.04.2022
Problem solved at the following versions (IBM BugInfos)
Problem solved according to the fixlist(s) of the following version(s)