Github user wzhfy commented on a diff in the pull request: https://github.com/apache/spark/pull/18309#discussion_r122581748 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/test/SQLTestUtils.scala --- @@ -126,6 +127,27 @@ private[sql] trait SQLTestUtils } /** + * Creates the requested number of temporary path (without creating the actual file/directory), --- End diff -- > without creating the actual file/directory what do you mean by "actual file"?
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