Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/23151#discussion_r237732369 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/test/SQLTestUtils.scala --- @@ -66,6 +66,18 @@ private[sql] trait SQLTestUtils extends SparkFunSuite with SQLTestUtilsBase with } } + /** + * Creates a temporary directory, which is then passed to `f` and will be deleted after `f` + * returns. + * --- End diff -- nit: unnecessary blank line
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