Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/11083#discussion_r53563485
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/physical/partitioning.scala
---
@@ -351,3 +376,21 @@ case class PartitioningCollection(partitionings:
Seq[Partitioning])
partitionings.map(_.toString).mkString("(", " or ", ")")
}
}
+
+/**
+ * Represents a partitioning where rows are collected, transformed and
broadcasted to each
+ * node in the cluster.
+ */
+case class BroadcastPartitioning(mode: BroadcastMode) extends Partitioning
{
--- End diff --
and partitioning here isn't really just about partitioning anymore. it also
includes how data is physically organized on each partition.
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