gustavodemorais commented on code in PR #29372:
URL: https://github.com/apache/flink/pull/29372#discussion_r4183341782
##########
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/utils/RankUtil.scala:
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@@ -383,17 +383,19 @@ object RankUtil {
!rank.outputRankNumber && rank.rankType == RankType.ROW_NUMBER &&
isTop1(rank.rankRange)
}
+ /**
+ * Whether the given rank is a deduplication ordered by a single time
attribute. Any other
+ * deduplication is executed as a regular Top-1 Rank that retracts the
previously kept row.
+ */
+ def isDeduplicationOnTimeAttribute(rank: Rank): Boolean =
Review Comment:
done
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