agrawaldevesh commented on a change in pull request #29342:
URL: https://github.com/apache/spark/pull/29342#discussion_r466738015
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/joins/ShuffledHashJoinExec.scala
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@@ -71,8 +89,134 @@ case class ShuffledHashJoinExec(
val numOutputRows = longMetric("numOutputRows")
streamedPlan.execute().zipPartitions(buildPlan.execute()) { (streamIter,
buildIter) =>
val hashed = buildHashedRelation(buildIter)
- join(streamIter, hashed, numOutputRows)
+ joinType match {
+ case FullOuter => fullOuterJoin(streamIter, hashed, numOutputRows)
Review comment:
I am not sure if that's a good idea:
spark.sql.autoBroadcastJoinThreshold is a very widely used config and I think
we should have a separate config to disable just this full outer join
optimization, without having to turn of BHJ in itself.
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