Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/1147#discussion_r15710615
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/joins.scala ---
@@ -137,6 +137,185 @@ trait HashJoin {
}
/**
+ * Constant Value for Binary Join Node
+ */
+object HashOuterJoin {
+ val DUMMY_LIST = Seq[Row](null)
+ val EMPTY_LIST = Seq[Row]()
--- End diff --
Please use `Seq.empty[Row]` inline instead of this variable.
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