cloud-fan commented on code in PR #54014:
URL: https://github.com/apache/spark/pull/54014#discussion_r2754063405
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sql/core/src/main/scala/org/apache/spark/sql/classic/Dataset.scala:
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@@ -1198,6 +1198,11 @@ class Dataset[T] private[sql](
Except(logicalPlan, other.logicalPlan, isAll = true)
}
+ /** @inheritdoc */
+ def zipWithIndex(indexColName: String): DataFrame = {
+ select(col("*"), Column(DistributedSequenceID()).alias(indexColName))
Review Comment:
Or we allow appending the index column always, and users will get error if
they select the column, or write out the dataframe to tables.
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