"Igor Georgiev" <gory@alphasoft-bg.com> writes:
> Ok, but my question actually isn't about pg_hba.conf comments, i read enough
> but what will stop root from adding this lines or doing su - postgres ??
As somebody already pointed out, you *must* trust the people with root
access to your machine; there is not anything you can do to defend
yourself against them. If you can't trust the admins on the machine
you're using, better get your own machine.
regards, tom lane