Github user marmbrus commented on a diff in the pull request: https://github.com/apache/spark/pull/1151#discussion_r14277569 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/basicOperators.scala --- @@ -204,3 +204,17 @@ case class ExistingRdd(output: Seq[Attribute], rdd: RDD[Row]) extends LeafNode { override def execute() = rdd } +/** + * :: DeveloperApi :: + * This operator support the substract function . + * Return an table with the elements from `this` that are not in `other`. --- End diff -- Use the names of the parameters `left` and `right` instead of `this` and `other`.
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