Hilary Forbes <hforbes(at)dmr(dot)co(dot)uk> writes:
> Next question on privileges! Can I safely remove all privileges
> from the system catalog tables for a user
Various people have experimented with doing that, but it tends to break
a lot of stuff. I suggest you just revoke privileges on the tables you
don't want the users messing with, and not get too worried about whether
they know the tables exist or not.
regards, tom lane