Hi Giacomo, If you have your data stored in a Tuple inside a DataSet, then a call to dataSet.sum(int field) should do it.
See Aggregation under http://ci.apache.org/projects/flink/flink-docs-master/apis/programming_guide.html#transformations Best, Max On Tue, Apr 28, 2015 at 2:52 PM, Giacomo Licari <giacomo.lic...@gmail.com> wrote: > Hi Guys, > how can obtain the sum of all items (integer or double) in a DataSet? > > Do I have to use Flink Iterators? And how? > > Thank you, > Giacomo >
