ambiata/ivory — pull request #371 by charleso (2014-10-27 06:20:42+00:00)
Title: Reduction logic for squashing chord

PR a day. This is just the reduction logic, with an attempt to share what I can with the snapshot squash.

The most significant omission here is punting on the state/cache management of the reductions, which is going to require some more thinking. This would probably be handled elsewhere anyway, but that will be my task for tomorrow.