gatorsmile commented on a change in pull request #28326:
URL: https://github.com/apache/spark/pull/28326#discussion_r416221822
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File path: sql/core/src/main/scala/org/apache/spark/sql/Column.scala
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@@ -1040,17 +1034,11 @@ class Column(val expr: Expression) extends Logging {
* df.select($"colA".name("colB"))
* }}}
*
- * If the current column has metadata associated with it, this metadata will
be propagated
- * to the new column. If this not desired, use `as` with explicitly empty
metadata.
Review comment:
Why removing these comments?
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