Hi, When I do :
Table counts = t .groupBy($("transactionId")) .select($("transactionId"), $("handlingTime").sum().as("summedhandlingTime")); The code below fails with : cannot find symbol .select($("transactionId"), $("handlingTime").sum().as("summedhandlingTime")); ^ symbol: method $(java.lang.String) location: class esl.job.cag.verwerkingstijden.CagVerwerkingsTijden The same is true when I copy the code below from https://nightlies.apache.org/flink/flink-docs-release-1.14/docs/dev/table/common/ DataStream<Tuple2<Integer, String>> stream1 = env.fromElements(new Tuple2<>(1, "hello")); DataStream<Tuple2<Integer, String>> stream2 = env.fromElements(new Tuple2<>(1, "hello")); // explain Table API Table table1 = tableEnv.fromDataStream(stream1, $("count"), $("word")); Table table2 = tableEnv.fromDataStream(stream2, $("count"), $("word")); Table table = table1 .where($("word").like("F%")) .unionAll(table2); Anyone a clue? Regards Hans