Heikki Linnakangas <hlinnakangas@vmware.com> writes:
> Hmm, I wonder if an empty string would be better? It'd look a bit odd,
> but at least it would not mislead you to think you're connected to a
> database called "none".
Works for me as a back-branch fix, especially since then we're adding
zero new strings to the back branches.
regards, tom lane