cloud-fan commented on code in PR #38497:
URL: https://github.com/apache/spark/pull/38497#discussion_r1019064915
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/subquery.scala:
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@@ -52,10 +52,12 @@ object RewritePredicateSubquery extends Rule[LogicalPlan]
with PredicateHelper {
outerPlan: LogicalPlan,
subplan: LogicalPlan,
joinType: JoinType,
- condition: Option[Expression]): Join = {
+ condition: Option[Expression],
+ subHint: Option[HintInfo]): Join = {
// Deduplicate conflicting attributes if any.
val dedupSubplan = dedupSubqueryOnSelfJoin(outerPlan, subplan, None,
condition)
- Join(outerPlan, dedupSubplan, joinType, condition, JoinHint.NONE)
+ // Add sub hint as right hint as the subquery plan is on the right side of
the join
Review Comment:
```suggestion
// Add subquery hint as right hint as the subquery plan is on the right
side of the join
```
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