Release 10.1A: OpenEdge Development:
Progress 4GL Reference

RELATION-FIELDS attribute

Returns the list of join fields between the parent and child as specified in the data-relation object definition.

Data type: CHARACTER

Access: Readable

Applies to: Data-relation object handle

You can use the value of this attribute in writing code that uses or extends the list of join fields without having to parse the value of the WHERE-STRING attribute, which in the default case provides essentially the same information but not necessarily in an ideal form for analyzing the relation.