Github user Ishiihara commented on a diff in the pull request:
https://github.com/apache/spark/pull/3173#discussion_r20056877
--- 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 --
You are right, the hash inner join will not be matched. I am trying to
resolve to merge join on inner join.
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