The GeocoderTableFieldPair object represents a descriptor of field mapping between two tables. The object is used to specify a mapping between tables in the table join descriptor GeocoderTableJoining.
Use the GeocoderTableJoining::CreateFieldPair method to create a field mapping descriptor. To add it to a table join descriptor, use the Append method for the GeocoderTableJoining::FieldPairs collection.