Hi folks, I'm hoping to get some help thinking about a solution to a problem I'm trying to solve. I have a stream of data that gets a bunch of new data every hour. I want to calculate rankings amongst all the values in a given hour once all the data has arrived. For the purpose of this problem we can say that everything arrives in the first 15min. We want to group by a time field as well as some other fields. How can I calculate ranks in this situation? Thanks!!