Github user aray commented on a diff in the pull request:
https://github.com/apache/spark/pull/7841#discussion_r44352381
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala ---
@@ -989,6 +989,41 @@ class DataFrame private[sql](
}
/**
+ * (Scala-specific) Pivots a column of the current [[DataFrame]] and
preform the specified
+ * aggregation.
+ * {{{
+ * // Compute the sum of earnings for each year by course with each
course as a separate column.
+ * df.pivot(Seq($"year"), $"course", Seq("dotNET", "Java"),
sum($"earnings"))
+ * }}}
+ * @param groupBy Columns to group by.
+ * @param pivotColumn Column to pivot
+ * @param pivotValues Values of pivotColumn that will be translated to
columns in the output data
+ * frame.
+ * @param aggregate Aggregate expression to preform for each combination
of groupBy and
+ * pivotValues.
+ * @group dfops
+ * @since 1.6.0
+ */
+ def pivot(
--- End diff --
sure
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