leanken commented on a change in pull request #29389:
URL: https://github.com/apache/spark/pull/29389#discussion_r467525605
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/joins/HashedRelation.scala
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@@ -125,7 +125,7 @@ private[execution] object HashedRelation {
* [number of keys]
* [size of key] [size of value] [key bytes] [bytes for value]
*/
-private[joins] class UnsafeHashedRelation(
+class UnsafeHashedRelation(
Review comment:
Ah. this is historical code. A question, should we consider the same when
LongHashedRelation.keys.isEmpty
UnsafeHashedRelation.keys.isEmpty
equalTo EmptyHashedRelation
if it does, we need this private[joins] to be removed. I am not quite sure.
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