Bear Giles <bgiles@coyotesong.com> writes: > In postgresql the equivalent user is 'postgres'. Nobody should ever be > logged in as that user once you've created the initial user(s). What > postgresql calls a 'superuser' is just a user with a few permissions set by > default. It's easy to grant the same privileges to any user, or drop them > from someone created as a superuser.
Well, more to the point, a superuser is somebody with the rolsuper bit set in their pg_authid entry. You can revoke the bootstrap superuser's superuserness if you have a mind to -- see ALTER USER. However, as everyone has pointed out already, this is a bad idea and you will end up undoing it. (Figuring out how to do that without a reinstall is left as penance for insisting on a bad idea. It is possible, and I think even documented.)
However: a whole lot of what the bootstrap superuser can do is inherent in being the owner of all the built-in database objects, and that you cannot get rid of. Objects have to be owned by somebody.