Hello, I was reading "learning spark" book and saw a tip in chapter 9 that read "In Spark 1.2, the regular cache() method on RDDs also results in a cacheTable()"
Is that true? When I cache a RDD and cache same data as a dataframe I see that memory usage for dataframe cache is way less than RDD cache. I thought this difference is due to columnar format used by dataframe. As per the statement in the book, cache size should be similar. Srikanth
