Tim Uckun <timuckun(at)gmail(dot)com> writes:
> I want to accomplish what I would think would be a simple thing. I
> want the root user to be able to connect to the postgres database as
> user postgres from the local machine without passwords. Since I am
> doing this from a program I don't want to use the su facility.
I suspect you are expecting that the map will cause root to be
logged in as postgres without asking for that. It won't.
What it will do is allow "psql -U postgres" and similar to work.
BTW, one has to wonder why you are using the root account for this
work in the first place. Wouldn't it be a lot more secure to use
a less privileged account (oh, I don't know, maybe postgres)?
regards, tom lane