Hi, community I am using flink to deal with some situation.
1. "distinct count" to calculate the uv/pv. 2. calculate the topN of the past 1 hour or 1 day time. Are these all realized by window? Or is there a best practice on doing this? 3. And when deal with the distinct, if there is no need to do the keyBy previous, how does the window deal with this. Thanks Aitozi. -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
