When accessing data from Informix using the included DataDirect ODBC Informix data driver, set the UseDelimitedIdentifier property to 1. To specify the property value for connection-string based designs, add the property UseDelimitedIdentifier=1 to the end of the connection string. To specify the property value for DSN‑based connections, perform the appropriate task for your operating system.

On a Windows system, go to the Windows ODBC registry entry:

and set the value of UseDelimitedIdentifier to 1.

On a Linux system, edit the odbc.ini file, and add UseDelimitedIdentifier=1 to the DSN entry.