> libpq normally connects to a unix socket by being given 'localhost' as the hostname or no hostname at all. 'localhost' for a unix socket doesn't sound right.

> libpq normally connects to a unix socket by being given 'localhost' as the hostname or no hostname at all. 'localhost' for a unix socket doesn't sound right. 'localhost' is a specific network address and has a default configuration in pg_hba.conf (127.0.0.1) for itself. It's different to the 'local' entry in pg_hba.conf that's specifically for unix sockets. And yeah, the field validation in the IDE required some kind of value in the hostname field, and wouldn't take a path (ie /var/...etc), so no kind of fallback behaviour seemed workable. :(