Github user aarondav commented on a diff in the pull request: https://github.com/apache/spark/pull/3173#discussion_r20056856 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/SparkStrategies.scala --- @@ -84,6 +84,10 @@ private[sql] abstract class SparkStrategies extends QueryPlanner[SparkPlan] { makeBroadcastHashJoin(leftKeys, rightKeys, left, right, condition, joins.BuildLeft) case ExtractEquiJoinKeys(Inner, leftKeys, rightKeys, condition, left, right) => + val mergeJoin = joins.MergeJoin(leftKeys, rightKeys, planLater(left), planLater(right)) + condition.map(Filter(_, mergeJoin)).getOrElse(mergeJoin) :: Nil + + case ExtractEquiJoinKeys(Inner, leftKeys, rightKeys, condition, left, right) => --- End diff -- just passing through, but is this right? It appears to be the same case as above, so I'm not sure when it would be matched.
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