anew commented on code in PR #57192:
URL: https://github.com/apache/spark/pull/57192#discussion_r3599165630
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sql/pipelines/src/main/scala/org/apache/spark/sql/pipelines/autocdc/Scd2BatchProcessor.scala:
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@@ -942,18 +1155,50 @@ object RowClassifier {
isOpenUpsert(row) || isClosedUpsert(row)
/**
- * Delete-representing row, encoded as an instantaneous (zero-width)
interval at `recordStartAt`
- * (`startAt == endAt == recordStartAt`). Never materializes in the target
table.
+ * Tombstone (delete-boundary) row, encoded as an instantaneous interval at
Review Comment:
Confirmed — yes, deletes are modeled as instantaneous tombstones throughout,
including in the "before" state.
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