hackergin commented on code in PR #24106: URL: https://github.com/apache/flink/pull/24106#discussion_r1465413612
########## flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/extraction/BaseMappingExtractor.java: ########## @@ -362,7 +363,17 @@ static Optional<FunctionArgumentTemplate> tryExtractInputGroupArgument( Method method, int paramPos) { final Parameter parameter = method.getParameters()[paramPos]; final DataTypeHint hint = parameter.getAnnotation(DataTypeHint.class); - if (hint != null) { + final ArgumentHint argumentHint = parameter.getAnnotation(ArgumentHint.class); + if (hint != null && argumentHint != null) { + throw extractionError( + "ArgumentHint and DataTypeHint cannot be declared at the same time."); Review Comment: parameters.getName can't get the real param name. I use position index instread. -- 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: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org