beliefer commented on a change in pull request #28685:
URL: https://github.com/apache/spark/pull/28685#discussion_r476152901
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/windowExpressions.scala
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@@ -363,6 +363,12 @@ abstract class OffsetWindowFunction
*/
val direction: SortDirection
+ /**
+ * Whether the offset is start with the current row. If
`startWithCurrentRow` is false, `offset`
+ * means the offset is start with the first row of the entire window
partition.
+ */
Review comment:
OK.
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