Hi Flavio, If I got it right, you can use a FullOuterJoin. It will give you both elements on a match and otherwise a left or a right element and null.
Best, Fabian 2016-02-12 16:48 GMT+01:00 Flavio Pompermaier <pomperma...@okkam.it>: > Hi to all, > > I have a use case where I have to merge 2 datasets but I can't find a > direct dataset API to do that. > I want to execute some function when there's a match, otherwise move on > the not-null element. > At the moment I can do this in a fairly complicated way (I want to avoid > broadcasting because the dataset could be big): using 2 leftOuterJoin plus > a union. Is there a simpler way? > > > Best, > Flavio >
