Hi, I'd appreciate your help on the following two questions about Dataset API:
1. Why do Dataset methods: createTempView, createOrReplaceTempView, createGlobalTempView and createOrReplaceGlobalTempView not return a DataFrame? They seem to be neither actions nor transformations (and probably the reason for a separate group basic). I wonder why they don't return a DataFrame? Where's the catch? 2. Why are localCheckpoint and checkpoint in the basic group? They'd be fine to be with untyped transformations since they do transform a Dataset into a DataFrame. Again, a bit of help would be very helpful. Pozdrawiam, Jacek Laskowski ---- https://about.me/JacekLaskowski Mastering Spark SQL https://bit.ly/mastering-spark-sql Spark Structured Streaming https://bit.ly/spark-structured-streaming Mastering Kafka Streams https://bit.ly/mastering-kafka-streams Follow me at https://twitter.com/jaceklaskowski