Last modified: 2012-08-04 20:48:45 UTC
A very common setup is for Postgres to be listening on a unix socket (indeed, one has to go out of the way to listen over TCP/IP). Would be nice if this was mentioned in the help tip for the "host name" section on the install, indicating that leaving it blank means not to use TCP/IP at all.
Done in r97527
"If you are using PostgreSQL, leave this field blank to connect via a Unix socket."