Thanks Robert and Fabian, >I think the issue is rather grouping a DataSet of custom types on multiple fields than grouping a Tuple DataSet
Yes, that's what I meant. Btw, would it be possible to generate a copy method for tuples as well? Copying e.g. Tuple15 could be quite tedious in the code, but essentially it's just another object creation. -- View this message in context: http://apache-flink-incubator-mailing-list-archive.1008284.n3.nabble.com/Fwd-stratosphere-dev-Grouping-by-a-tuple-tp40p54.html Sent from the Apache Flink (Incubator) Mailing List archive. mailing list archive at Nabble.com.
