dongjoon-hyun commented on a change in pull request #24993: [SPARK-18299][SQL]
Allow more aggregations on KeyValueGroupedDataset
URL: https://github.com/apache/spark/pull/24993#discussion_r300577393
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File path:
sql/core/src/main/scala/org/apache/spark/sql/KeyValueGroupedDataset.scala
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@@ -520,6 +520,71 @@ class KeyValueGroupedDataset[K, V] private[sql](
col4: TypedColumn[V, U4]): Dataset[(K, U1, U2, U3, U4)] =
aggUntyped(col1, col2, col3, col4).asInstanceOf[Dataset[(K, U1, U2, U3,
U4)]]
+ /**
+ * Computes the given aggregations, returning a [[Dataset]] of tuples for
each unique key
+ * and the result of computing these aggregations over all elements in the
group.
+ *
+ * @since 1.6.0
Review comment:
Maybe, `@since 3.0.0` instead `@since 1.6.0`?
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