new assignment for Brendan

Brendan,

> The new correlation metric patch isn't ready for review.  It's
> currently undergoing a rethink.  I've moved it to Returned with
> Feedback, and the author understands that it might not be a candidate
> for 8.4.
>
> I'm available for a new assignment.

Great.  You want to start on:
SQL Standard Interval output and IntervalStyle GUC
... and move on to its successor patches if it checks out ok?

Thanks!

--Josh