Bruce Momjian <bruce(at)momjian(dot)us> writes:
> Well, this is psql and it should be easy; I am not sure pg_catalog.*
> fits that requirement.
It should be easy for common cases, which I argue "I need to see *only*
system objects" is not.
> Right now if you do \dt you see user tables, and
> \dtS shows system tables; I don't see removing 'S' as being a great
> usability gain.
It's removal of unnecessary complexity. These commands are teetering on
the edge of being too complicated to explain already.
regards, tom lane