dongjoon-hyun commented on code in PR #41499:
URL: https://github.com/apache/spark/pull/41499#discussion_r1221980418


##########
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkStrategies.scala:
##########
@@ -288,7 +288,8 @@ abstract class SparkStrategies extends 
QueryPlanner[SparkPlan] {
             .orElse(createCartesianProduct())
             .getOrElse {
               // This join could be very slow or OOM
-              val buildSide = getSmallerSide(left, right)
+              val requiredBuildSide = getBroadcastNestedLoopJoinBuildSide(hint)
+              val buildSide = requiredBuildSide.getOrElse(getSmallerSide(left, 
right))

Review Comment:
   NVM. We can add that later in the main PR.



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