Blink planner does not ingest timestamp into StreamRecord

StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        env.setParallelism(1);
            EnvironmentSettings settings =
                    EnvironmentSettings.newInstance().inStreamingMode().useBlinkPlanner().build();
            StreamTableEnvironment tEnv = StreamTableEnvironment.create(env, settings);

        DataStream<Order> orderA =
                env.fromCollection(
                        Arrays.asList(
                                new Order(1L, "beer", 3),
                                new Order(1L, "diaper", 4),
                                new Order(3L, "rubber", 2)));

        DataStream<Order> orderB =
                orderA.assignTimestampsAndWatermarks(
                        new AssignerWithPunctuatedWatermarks<Order>() {
                            @Nullable
                            @Override
                            public Watermark checkAndGetNextWatermark(
                                    Order lastElement, long extractedTimestamp) {
                                return new Watermark(extractedTimestamp);
                            }

                            @Override
                            public long extractTimestamp(Order element, long recordTimestamp) {
                                return element.user;
                            }
                        });

        Table tableA = tEnv.fromDataStream(orderB, $("user").rowtime(), $("product"), $("amount"));

        // union the two tables
        Table result = tEnv.sqlQuery("SELECT * FROM " + tableA);

        tEnv.toAppendStream(result, Row.class)
                .process(
                        new ProcessFunction<Row, Row>() {
                            @Override
                            public void processElement(Row value, Context ctx, Collector<Row> out)
                                    throws Exception {
                                System.out.println("TIMESTAMP" + ctx.timestamp());
                            }
                        })
                .print();

        env.execute();