Paul Lambert <paul.lambert@reynolds.com.au> writes:
> I would have thought giving the user all privileges on a schema would by
> default add them to all objects within it,
Why would you think that?
The analogy to think about is that usage privilege on a schema is
comparable to read access on a directory. That doesn't necessarily give
you access to any single file in the directory --- but lack of it does
ensure you cannot get to those files.
regards, tom lane