Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/19862#discussion_r154566463
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/joins/SortMergeJoinExec.scala
---
@@ -700,38 +701,43 @@ private[joins] class SortMergeJoinScanner(
bufferedMatches.clear()
false
} else if (matchJoinKey != null && keyOrdering.compare(streamedRowKey,
matchJoinKey) == 0) {
- // The new streamed row has the same join key as the previous row,
so return the same matches.
+ // The new streamed row has the same join key as the previous row,
so return the same
+ // matches.
--- End diff --
Unnecessary change.
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