https://community.cloudera.com/t5/Support-Questions/Fetch-distinct-values-of-a-column-in-Dataframe-using-Spark/m-p/174639#M136902 <P>i figured the cause of my issue i was facing. In the above piece of code i am doing a nested transformation which is not supported by Spark. Any approach i should follow to avoid this nested transformation ?</P> Wed, 17 Aug 2016 07:43:28 GMT kaz_narasimhan 2016-08-17T07:43:28Z