Hey All- Can anyone tell me what happens to rowtime after a group by window aggregation using the TableAPI? How is rowtime for the output row determined? Is there a way to redefine the rowtime field after the window? Asking because I have a groupby window aggregation where I select the window rowtime (I would like this to be the rowtime of the output row moving forward, but I'm not sure this is the case). I then follow that with an interval join and the interval join is proceeding extremely slowly at the moment