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IBM Data and AI Ideas Portal for Customers

This portal is to open public enhancement requests against products and services offered by the IBM Data & AI organization. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (

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Status Not under consideration
Workspace Informix
Components Informix Server
Created by Guest
Created on Jun 1, 2015

IWA: Need support for SQL function INSTR(), i.e., in-string

Informix Warehouse Accelerator (IWA) does not support the SQL function INSTR(), which allows us to search a substring within a string, and gets the location or character position of that substring inside the string.

Informix does support substring function INSTR(). More information can be found at the product documentation:

IBM Informix 12.10 Knowledge Center
INSTR function

For the use case scenarios, if a user is looking to only find out whether a substring can be found inside a string, then, as a possible workaround, function LIKE can be used with IWA. For other scenarios, in which the user requires the location of the occurrences of a substring within a string, this alternative of using LIKE is not a workaround.