Github user ericl commented on a diff in the pull request:
https://github.com/apache/spark/pull/14690#discussion_r83340821
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala ---
@@ -2602,7 +2602,7 @@ class Dataset[T] private[sql](
* @since 2.0.0
*/
def inputFiles: Array[String] = {
- val files: Seq[String] = logicalPlan.collect {
+ val files: Seq[String] = queryExecution.optimizedPlan.collect {
--- End diff --
We only determine the partitions read after optimization, so it's necessary
to read it from that instead of the logical plan.
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