Hi Carlos, What I think is happening here is that the third 'a' you see is actually on > a different window of the other 3 a's. Stateful being per key and window > means that it keeps state for each key-window pairs, therefore, if your > 'a's counter is being restarted is probably because it is actually a > different one, and as the key is the same then the only possibility is that > the window is different. >
Yeah, that was my initial guess too, that's why I have questioned if I have understood the semantic of the session window itself. Fortunately, as Kenneth pointed out, my understanding was correct but this window model is not compatible with stateful processing yet. Maurizio
