viirya commented on a change in pull request #23759: [SPARK-26840][SQL] Avoid
cost-based join reorder in presence of join hints
URL: https://github.com/apache/spark/pull/23759#discussion_r255364163
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CostBasedJoinReorder.scala
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@@ -77,24 +77,24 @@ object CostBasedJoinReorder extends Rule[LogicalPlan] with
PredicateHelper {
*/
private def extractInnerJoins(plan: LogicalPlan): (Seq[LogicalPlan],
Set[Expression]) = {
plan match {
- case Join(left, right, _: InnerLike, Some(cond), _) =>
+ case Join(left, right, _: InnerLike, Some(cond), hint) if hint ==
JoinHint.NONE =>
Review comment:
I think we can use pattern match as @dongjoon-hyun's PR, it will be simpler.
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