apache/spark — pull request #3578 by rxin (2014-12-03 09:28:36+00:00)
Title: [SPARK-4719][API] Consolidate various narrow dep RDD classes with MapPartitionsRDD

MappedRDD, MappedValuesRDD, FlatMappedValuesRDD, FilteredRDD, GlommedRDD, FlatMappedRDD are not necessary. They can be implemented trivially using MapPartitionsRDD.