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[SPARK-21645]left outer join synchronize the condition from left table to right #21161

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[SPARK-21645]left outer join synchronize the condition from left table to right #21161

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2 changes: 1 addition & 1 deletion sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/joins.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -138,7 +138,7 @@ object EliminateOuterJoin extends Rule[LogicalPlan] with PredicateHelper {

join.joinType match {
case RightOuter if leftHasNonNullPredicate => Inner
case LeftOuter if rightHasNonNullPredicate => Inner
case LeftOuter if rightHasNonNullPredicate => LeftOuter
case FullOuter if leftHasNonNullPredicate && rightHasNonNullPredicate => Inner
case FullOuter if leftHasNonNullPredicate => LeftOuter
case FullOuter if rightHasNonNullPredicate => RightOuter
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2 changes: 2 additions & 0 deletions ...st/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala
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Expand Up @@ -317,6 +317,8 @@ case class Join(
left.constraints
case LeftOuter =>
left.constraints
.union(right.constraints)
.union(splitConjunctivePredicates(condition.get).toSet)
case RightOuter =>
right.constraints
case FullOuter =>
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