viirya commented on a change in pull request #29342:
URL: https://github.com/apache/spark/pull/29342#discussion_r467503454
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/joins/HashedRelation.scala
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@@ -91,13 +96,18 @@ private[execution] object HashedRelation {
/**
* Create a HashedRelation from an Iterator of InternalRow.
+ *
+ * @param isLookupAware reserve one extra boolean in value to track if value
being looked up
Review comment:
Can you also mention that this is only used in full outer shuffled hash
join?
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