Github user ankurdave commented on a diff in the pull request:
https://github.com/apache/spark/pull/9470#discussion_r47396144
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala ---
@@ -620,6 +608,32 @@ class DataFrame private[sql](
}
/**
+ * Returns a new [[DataFrame]] with each partition sorted by the given
expressions.
+ *
+ * This is the same operation as "SORT BY" in SQL (Hive QL).
+ *
+ * @group dfops
+ * @since 1.6.0
+ */
+ @scala.annotation.varargs
+ def sortWithinPartitions(sortCol: String, sortCols: String*): DataFrame
= {
+ sortWithinPartitions(sortCol, sortCols : _*)
--- End diff --
@rxin This causes an infinite loop, which isn't caught by the unit tests
since DataFrameSuite only tests the `Column*` overload.
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