skonto commented on issue #25098: [SPARK-28280][SQL][PYTHON][TESTS] Convert and port 'group-by.sql' into UDF test base URL: https://github.com/apache/spark/pull/25098#issuecomment-510213405 if I set: ``` case class TestScalaUDF(name: String) extends TestUDF { private def mapToString(input: Any): Any = { val ret = String.valueOf(input) if (input == null) { input } else { ret } } private[IntegratedUDFTestUtils] lazy val udf = SparkUserDefinedFunction( (input: Any) => mapToString(input), StringType, inputSchemas = Seq.fill(1)(None), name = Some(name)) def apply(exprs: Column*): Column = udf(exprs: _*) val prettyName: String = "Scala UDF" } ``` it validates against the golden file which means when golden file is not generated test suite picks up "--set" configs and results change... So there is a bug here about expected behavior.
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