Github user mgaido91 commented on a diff in the pull request:
https://github.com/apache/spark/pull/21133#discussion_r184866957
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/ApproximatePercentileQuerySuite.scala
---
@@ -279,4 +282,11 @@ class ApproximatePercentileQuerySuite extends
QueryTest with SharedSQLContext {
checkAnswer(query, expected)
}
}
+
+ test("SPARK-24013: unneeded compress can cause performance issues with
sorted input") {
+ failAfter(30 seconds) {
--- End diff --
I agree that this is not the best UT, but I couldn't find any better way to
test this. If anybody has any idea of a better test, I am happy to follow your
right suggestion...
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