Github user zsxwing commented on a diff in the pull request: https://github.com/apache/spark/pull/22429#discussion_r219977185 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/ExistingRDD.scala --- @@ -196,7 +196,7 @@ case class RDDScanExec( } } - override def simpleString: String = { + override def simpleString(maxFields: Option[Int]): String = { s"$nodeName${Utils.truncatedString(output, "[", ",", "]")}" --- End diff -- `maxFields` should be used here.
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