To be fair, a SIGMOD paper is much more detailed than a white paper. But perhaps you said that because the Google page only links to the presentation from the conference, not the paper itself. You can find that here: http://dl.acm.org/citation.cfm?id=2213954
edit: oddly, it appears that the "full-text" pdf that the ACM has is just the abstract. So I can't get at the full paper, either. Sorry about that.