Thank you very much for your answer. I have a question regarding your first paragraph: " it requires that a sink participates in the pipeline. So it is not located as a "leaf" operator but location somewhere in the middle."
Isn't Sink a terminating operator? So as far as I know Sinks cannot be in the middle of stream chain. I will appreciate other comments as well. Thanks, Krzysztof -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
