Hi

You are looking for the explode method (in Dataframe API starting 1.3 I believe)
https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala#L1002

Ram

On Sun, Jun 7, 2015 at 9:22 PM, Dimp Bhat <dimp2011us@gmail.com> wrote:
Hi,
I'm trying to write a custom transformer in Spark ML and since that uses DataFrames, am trying to use flatMap function in DataFrame class in Java. Can you share a simple example of how to use the flatMap function to do word count on single column of the DataFrame. Thanks


Dimple