MaxGekk commented on code in PR #44336: URL: https://github.com/apache/spark/pull/44336#discussion_r1436132674
########## sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Expression.scala: ########## @@ -1300,14 +1301,16 @@ trait ComplexTypeMergingExpression extends Expression { lazy val inputTypesForMerging: Seq[DataType] = children.map(_.dataType) def dataTypeCheck: Unit = { - require( - inputTypesForMerging.nonEmpty, - "The collection of input data types must not be empty.") - require( - TypeCoercion.haveSameType(inputTypesForMerging), - "All input types must be the same except nullable, containsNull, valueContainsNull flags. " + - s"The expression is: $this. " + - s"The input types found are\n\t${inputTypesForMerging.mkString("\n\t")}.") + SparkException.require( + requirement = inputTypesForMerging.nonEmpty, + errorClass = "COMPLEX_EXPRESSION_UNSUPPORTED_INPUT.NO_INPUTS", Review Comment: > I'll add tests Please, add end-to-end tests for the errors to `QueryCompilationErrorsSuite` using public API or SQL, and remove the tests from `ExpressionSuite`. FYI, we introduce error classes for user facing errors. In the case if an error is not visible to users, we should consider to convert it to an internal error. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org