The folding of unquoted names to lower case in PostgreSQL is incompatible with the SQL standard

I am trying to integrate MapInfo with a postgresql backend.
Problem:
MapInfo query uses both quoted and unquoted statements i.e.
"MAPINFO"."MAPINFO_MAPCATALOG" and mapinfo.mapinfo_mapcatalog
I have a schema called MAPINFO and a table called MAPINFO_MAPCATALOG.
I need to fold unquoted names to uppercase.

I really only need to change this behaviour for this schema.

David Delorme
http://dmdelorme.ca