zml1206 commented on code in PR #44660:
URL: https://github.com/apache/spark/pull/44660#discussion_r1450325840
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sql/core/src/main/scala/org/apache/spark/sql/execution/joins/SortMergeJoinExec.scala:
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@@ -959,38 +963,53 @@ case class SortMergeJoinExec(
// Scan the left and right buffers to find all matched rows.
val matchRowsInBuffer =
s"""
- |int $leftIndex;
- |int $rightIndex;
- |
- |for ($leftIndex = 0; $leftIndex < $leftBuffer.size(); $leftIndex++) {
+ |while ($leftIndex < $leftBuffer.size()) {
| $leftOutputRow = (InternalRow) $leftBuffer.get($leftIndex);
- | for ($rightIndex = 0; $rightIndex < $rightBuffer.size();
$rightIndex++) {
+ | while ($rightIndex < $rightBuffer.size()) {
Review Comment:
Convenient control, go to +1 in different places.
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