Thanks! Presto supports arbitrary SQL including some basic window functions (full support is on our roadmap). I've used window functions at previous companies w

Thanks! Presto supports arbitrary SQL including some basic window functions (full support is on our roadmap). I've used window functions at previous companies with commercial data warehouses to do some basic click stream analysis: http://prestodb.io/docs/current/functions/window.html http://prestodb.io/docs/current/functions/window.html We have over a thousand employees in Facebook using it daily for anything you can imagine, so I recommend trying it and letting us know what you find useful and how it can be improved.