cloud-fan commented on a change in pull request #23388: [SPARK-26448][SQL]
retain the difference between 0.0 and -0.0
URL: https://github.com/apache/spark/pull/23388#discussion_r244079988
##########
File path:
sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/HiveUDFSuite.scala
##########
@@ -141,11 +141,13 @@ class HiveUDFSuite extends QueryTest with
TestHiveSingleton with SQLTestUtils {
}
test("SPARK-2693 udaf aggregates test") {
- checkAnswer(sql("SELECT percentile(key, 1) FROM src LIMIT 1"),
- sql("SELECT max(key) FROM src").collect().toSeq)
+ checkAnswer(
+ sql("SELECT percentile(key, 1) FROM src LIMIT 1"),
+ sql("SELECT double(max(key)) FROM src"))
Review comment:
`percentile` always return double, we need to cast `max` to double so that
we can compare the results.
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