viirya commented on code in PR #424:
URL: https://github.com/apache/datafusion-comet/pull/424#discussion_r1600500642
##########
spark/src/test/scala/org/apache/comet/CometCastSuite.scala:
##########
@@ -738,6 +738,17 @@ class CometCastSuite extends CometTestBase with
AdaptiveSparkPlanHelper {
castTest(generateTimestamps(), DataTypes.DateType)
}
+ // todo: Refactor this
+ test("xxhash64") {
+ val input = generateStrings(timestampPattern, 8).toDF("a")
+ withTempPath { dir =>
+ val data = roundtripParquet(input, dir).coalesce(1)
+ data.createOrReplaceTempView("t")
+ val df = spark.sql(s"select a, xxhash64(a), xxhash64(1, a) from t order
by a")
+ checkSparkAnswerAndOperator(df)
+ }
+ }
Review Comment:
Hmm, this is randomly generated, how do we make sure it definitely produces
the data causing the error? Could we have a deterministic test case for the fix?
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