cloud-fan commented on code in PR #43938:
URL: https://github.com/apache/spark/pull/43938#discussion_r1402983163
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sql/core/src/main/scala/org/apache/spark/sql/execution/joins/HashJoin.scala:
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@@ -138,9 +138,8 @@ trait HashJoin extends JoinCodegenSupport {
UnsafeProjection.create(streamedBoundKeys)
@transient protected[this] lazy val boundCondition = if
(condition.isDefined) {
- if (joinType == FullOuter && buildSide == BuildLeft) {
- // Put join left side before right side. This is to be consistent with
- // `ShuffledHashJoinExec.fullOuterJoin`.
+ if ((joinType == FullOuter || joinType == LeftOuter) && buildSide ==
BuildLeft) {
+ // Put join left side before right side. This is to be consistent with
ShuffledHashJoinExec.
Review Comment:
Actually I don't know why outer join needs to be a special case. Can't we
always put streaming side left and build side right?
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