Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/23131#discussion_r236054278 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala --- @@ -1852,6 +1852,19 @@ class Dataset[T] private[sql]( CombineUnions(Union(logicalPlan, other.logicalPlan)) } + /** + * Returns a new Dataset containing union of rows in this Dataset and another Dataset. --- End diff -- Done.
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