presumably it has a semantic model of sorts, defining intrinsic relationships between entities (parent-child, composed-of, sibling-of, and so on)
A bit similar how certain joins in SQL can be very straightforward with the "USING" clause, or when it can rely on extra information such as analytic views to derive materialized views (vendor specific)
A bit similar how certain joins in SQL can be very straightforward with the "USING" clause, or when it can rely on extra information such as analytic views to derive materialized views (vendor specific)