HaskellDB

Hello,

I know that PostgreSQL allows you to not specify some fields when
connecting. When they are not specified, the behaviour is a little
different, and in some cases very different:

username: if the username is not specified, the "unix" username is picked.

password: if the password is not specified, then instead of authenticating
against a password, ident is used, that is, it checks to see if you are
logged in to the local machine as that user... but to do that...

host: if no host is specified, a socket local connection is used (or
something like that).

dbname: if no dbname is specified, a db named after the user is picked.

It would be nice if postgressqlConnect and genericConnect would allow such
behaviour.

Thank you.