Hi Piotr, Thank you for your explanation. I basically understand your meaning, as far as my understanding, we can write a custom window assigner and custom trigger, and we can register the timer when the window process elements.
But How can we register a timer when no elements received during a time window? My requirement is to always fire at end of the time window even no result from the sql query. -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
