From 94278a7f76e5383228c7d974825abb80f4f0f8b9 Mon Sep 17 00:00:00 2001 From: Andrew Ash Date: Wed, 8 Nov 2017 16:26:31 +0530 Subject: [PATCH] [SPARK-22470][DOC][SQL] functions.hash is also used internally for shuffle and bucketing --- sql/core/src/main/scala/org/apache/spark/sql/functions.scala | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sql/core/src/main/scala/org/apache/spark/sql/functions.scala b/sql/core/src/main/scala/org/apache/spark/sql/functions.scala index 6bbdfa3ad1893..f888eebe083a2 100644 --- a/sql/core/src/main/scala/org/apache/spark/sql/functions.scala +++ b/sql/core/src/main/scala/org/apache/spark/sql/functions.scala @@ -2140,6 +2140,8 @@ object functions { /** * Calculates the hash code of given columns, and returns the result as an int column. * + * This is the same hash function as used internally by Spark for shuffle and bucketing. + * * @group misc_funcs * @since 2.0.0 */