leanken commented on a change in pull request #29104:
URL: https://github.com/apache/spark/pull/29104#discussion_r458489403
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/joins/HashedRelation.scala
##########
@@ -300,8 +318,12 @@ private[joins] class UnsafeHashedRelation(
}
override def read(kryo: Kryo, in: Input): Unit = Utils.tryOrIOException {
- read(() => in.readInt(), () => in.readLong(), in.readBytes)
+ read(() => in.readBoolean(), () => in.readInt(), () => in.readLong(),
in.readBytes)
}
+
+ override def inputEmpty: Boolean = binaryMap.inputEmpty
Review comment:
anyNullKeyExists already inlined in binaryMap.inputEmpty
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