There are some missing features in rum index, but I hope we'll update github repository really soon.
This is simply amazing!
I want to run 9.6 beta in production right now because of this:-)
wait-wait :) We'd be happy to have feedback from production, of course, but please, wait a bit. We are adding support of sorting posting list/tree not by item pointer as in gin, but make use of additional information, for example, timestamp, which will provide additional speedup to the existing one. Also, we are sure there are some bugs :)
Hats off guys, congrats to PostgresPro, and huge thanks!!