Re: Ability to listen on two unix sockets

On lör, 2012-06-09 at 18:02 -0400, Tom Lane wrote:
> Peter Eisentraut <peter_e@gmx.net> writes:
> > We already have the ability to configure the Unix socket directory in
> > postgresql.conf.  All you need to do is turn that into a list.
> 
> Um, no, it's not quite that simple.  In particular, what do you think
> should happen on the client side?

Nothing changes there.

> I'm inclined to think that we should (continue to) have a hardwired
> "primary" directory, which is the one that libpq is also configured
> to look in by default.

Yes.

> But we could add a run-time-configured list of secondary directories to establish sockets in.

Yes, I'm just pointing out that we already have that list
(unix_socket_directory in postgresql.conf), except it's currently
limited to length 1, because no one has needed a longer one until now.