CIAI and ROW_ID

Our client uses S_CASE.ROW_ID for case references, as opposed to CASENUM.

They want to be able to query by S_CASE.ROW_ID, which is fine, but they'd like to do so in a case insensitive manner.

It would appear that the CIAI Wizard doesn't allow this: "Columns of functional type 'System' are not supported". I used the following CSV to feed into the wizard:

S_CASE

,ROW_ID

,Database

,None

,On

Any thoughts on how to allow case insensitive search across ROW_ID?

Thanks!