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  • david p moore thinks this is interesting:

One important note: in future versions of Spark, the name SchemaRDD may be changed to DataFrame. This renaming was still under discussion as this book went to print.

From

Cover of Learning Spark
  • 9. Spark SQL
  • from Learning Spark
  • by Matei Zaharia, Patrick Wendell, Andy Konwinski, Holden Karau
  • Publisher: O'Reilly Media, Inc.
  • Released: February 2015

Note

DataFrame is the new name.