Bulk Operation

SPARK-13822 Remove the untyped version of Dataset.groupByKey

SPARK-13822 Replace internal use of unionAll with union

SPARK-13822 Some Dataset API touch-up

SPARK-13822 SQLContext.range should return Dataset[java.lang.Long]

SPARK-13822 Should provide a factory method for constructing DataFrames using unresolved logical plan

SPARK-13822 Merge DatasetHolder and DataFrameHolder

SPARK-13822 GroupedData vs GroupedDataset naming is confusing

SPARK-13822 Dataset.toJSON should return Dataset[String]

SPARK-13822 DataFrameReader.text should return Dataset[String]

SPARK-13822 SQLContext.range should return Dataset[Long]

SPARK-13822 Remove LegacyFunctions

SPARK-13822 Rename DataFrame.scala as Dataset.scala

SPARK-13822 Remove Dataset.collectRows() and Dataset.takeRows()

SPARK-13822 QueryExecution's assertAnalyzed needs to preserve the stacktrace

SPARK-13822 Revise ScalaDoc of the new Dataset API

SPARK-13822 Re-enable MiMA check after unifying DataFrame and Dataset API