dongjoon-hyun commented on a change in pull request #29389:
URL: https://github.com/apache/spark/pull/29389#discussion_r467646746
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/joins/HashedRelation.scala
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@@ -950,8 +950,18 @@ trait NullAwareHashedRelation extends HashedRelation with
Externalizable {
/**
* A special HashedRelation indicates it built from a empty
input:Iterator[InternalRow].
+ * get & getValue will return null just like
+ * Empty LongHashedRelation or Empty UnsafeHashedRelation does.
Review comment:
`Empty` -> `empty`
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