Github user mgaido91 commented on a diff in the pull request: https://github.com/apache/spark/pull/20664#discussion_r170279656 --- Diff: core/src/test/scala/org/apache/spark/rdd/RDDSuite.scala --- @@ -1129,6 +1129,36 @@ class RDDSuite extends SparkFunSuite with SharedSparkContext { }.collect() } + test("SPARK-23496: order of input partitions can result in severe skew in coalesce") { --- End diff -- I see, thanks, sorry, I missed it
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