@krlmlr Could you maybe comment on

This requires the role issuing the query to have USAGE privileges for the role that owns the relation for the corresponding FK-constraint to be picked up by dm_meta_raw(). Admittedly, I'm fairly new to the topic of DB access privileges, but this seems unnecessarily restrictive. Couldn't you easily find yourself in the situation where the user/role owning theses objects is much more capable than the user/role trying to "learn" them?