CoGroup is more generic than Join. You can perform a Join with CoGroup but not do a CoGroup with a Join. However, Join can be executed more efficiently than CoGroup.
2015-09-03 22:28 GMT+02:00 hagersaleh <loveallah1...@yahoo.com>: > what different between join and coGroup in flink > > > > > -- > View this message in context: > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/what-different-between-join-and-coGroup-in-flink-tp2682.html > Sent from the Apache Flink User Mailing List archive. mailing list archive > at Nabble.com. >