I think that sentence is misleading and refers to the internals of Flink.
It should be removed, IMO.
You can only union two DataSets. If you want to union more, you have to do
it one by one.
Btw. union does not cause additional processing overhead.
Cheers, Fabian
2016-05-19 14:44 GMT+02:00 Rites
Thanks for the reply Fabian,
Though here's a small thing I found on the documentation page:
https://ci.apache.org/projects/flink/flink-docs-release-0.8/programming_guide.html#transformations
If you look into the Union section, "This operation happens implicitly if
more than one data set is used f
I think union is what you are looking for.
Note that all data sets must be of the same type.
2016-05-18 16:15 GMT+02:00 Ritesh Kumar Singh :
> Hi,
>
> How can I perform a reduce operation on a group of datasets using Flink?
> Let's say my map function gives out n datasets: d1, d2, ... dN
> Now I
