Hi,
I believe this question might have been asked before - so sorry for repeating it (I just did not find the discussion on the mailing list). Is it possible somehow to create a new DataStream from the elements that are evicted from a window? A simple use case for this is: We have data coming from a sensor every second. We want to compute all the times the average on the last 5 seconds and on the interval from 5 seconds ago until 10 seconds ago. I would be interested in how the data evicted from the main window that keeps the fresh data could be feed into a new stream on which I could apply again a window of 5 seconds. (Having a 10 seconds window and selecting only the most ancient 5 second data is not a viable option) Regards,