Philip Warner <pjw@rhyme.com.au> writes:
> This would be something I'd like to do as a learning exercise. However,
> aren't we 2 days from beta? Is this enough time to learn how to add a
> function to the backend?
In practice, you've probably got a week. I believe Marc is planning to
be out of town for a week starting tomorrow, and he's not going to be
pushing out a beta till he gets back.
(Besides, I'm not quite done with subselect-in-FROM ;-))
I'd recommend going for the function.
regards, tom lane