Here's everything I could find, the KB article doesn't seem to be the one we were directed to, at least according to my notes:
Zach, is there any chance of getting the name & contact info of the Tableau engineer who was on the line the other night, so we can ask again?
I just started a new thread with this whitepaper attached. I was not able to attach a file to existing thread (otherwise I would have posted it here). Let me know if you have any questions!