vanzin commented on a change in pull request #26108: [SPARK-26154][SS]
Streaming left/right outer join should not return outer nulls for already
matched rows
URL: https://github.com/apache/spark/pull/26108#discussion_r338825529
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/StreamingSymmetricHashJoinExec.scala
##########
@@ -467,6 +486,31 @@ case class StreamingSymmetricHashJoinExec(
}
}
+ private class AddingProcessedRowToStateCompletionIterator(
+ key: UnsafeRow,
+ thisRow: UnsafeRow,
+ subIter: Iterator[JoinedRow])
+ extends CompletionIterator[JoinedRow, Iterator[JoinedRow]](subIter) {
+ private var iteratorNotEmpty: Boolean = false
Review comment:
Can't this just be a `val`? `hasNext` is supposed to be cheap, or at the
very least idempotent, so should be safe to call here.
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