I’m trying to do the second ticket in chapter 3 and I am confused. It seems like the previous video introduced aggregation, stated a few, and then the ticket is for something 10 steps beyond what the lecture covered. I think the course would benefit from one more lecture being put before this that covers order of operations in an aggregation pipeline. I think it would be a much more natural lead-up to this ticket item than the leap that occurs now.
I don’t know how to determine what order the aggregates go in for the ticket. I could just keep moving them around until I get lucky, but I’d rather learn how to determine the order for myself. Is there any resource out there that explains this? I tried Googling and all I found was lists of the aggregates, which doesn’t help in this case.