Github user mgaido91 commented on a diff in the pull request: https://github.com/apache/spark/pull/21815#discussion_r203671394 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/DataSourceScanExec.scala --- @@ -199,7 +199,7 @@ case class FileSourceScanExec( ret } - override val (outputPartitioning, outputOrdering): (Partitioning, Seq[SortOrder]) = { + override lazy val (outputPartitioning, outputOrdering): (Partitioning, Seq[SortOrder]) = { --- End diff -- it'd be computed anyway, though, when we create a new `FileSourceScanExec` in the canonicalization process, if it is not lazy, so I'd say that this is needed, as well as all the others.
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