Flatten both RDD arguments for RDDUtils#unionAndFlatten()
Flatten both RDD arguments for RDDUtils#unionAndFlatten()

amplab/shark,mattyb149/blinkdb,sjyk/sampleclean,lzshlzsh/shark,mapr/shark,sameeragarwal/blinkdb,sjyk/sampleclean,alabid/blinkdb,alabid/blinkdb,mapr/shark,amplab/shark,sjyk/sampleclean,mapr/shark,alabid/blinkdb,lzshlzsh/shark,mattyb149/blinkdb,amplab/shark,sameeragarwal/blinkdb,lzshlzsh/shark,mattyb149/blinkdb,sameeragarwal/blinkdb