c21 commented on a change in pull request #32218:
URL: https://github.com/apache/spark/pull/32218#discussion_r615341591
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkStrategies.scala
##########
@@ -283,10 +283,13 @@ abstract class SparkStrategies extends
QueryPlanner[SparkPlan] {
}
def createCartesianProduct() = {
- if (joinType.isInstanceOf[InnerLike]) {
- Some(Seq(joins.CartesianProductExec(planLater(left),
planLater(right), condition)))
- } else {
- None
+ joinType match {
+ case _: InnerLike =>
+ Some(Seq(joins.CartesianProductExec(planLater(left),
planLater(right), condition)))
+ case LeftOuter | RightOuter | FullOuter if condition.isEmpty =>
Review comment:
Good find! I think we need to correct
[CartesianProductExec.joinType](https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/joins/CartesianProductExec.scala#L65)
as well.
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