You can also use Reduce to compute a sum on any data type (e.g., an Integer field in a POJO).
2015-04-28 15:25 GMT+02:00 Maximilian Michels <[email protected]>: > 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 <[email protected]> > 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 >> > >
