Thank you for your reporting.
I created a ticket in JIRA. You can track this problem in this link:
https://issues.apache.org/jira/browse/FLINK-27449
<https://issues.apache.org/jira/browse/FLINK-27449>.
> On 22 Apr 2022, at 10:44 AM, 草莓 <w757227...@163.com> wrote:
>
> The following is the Java code
>
> @Test
> public void test(){
> StreamExecutionEnvironment env =
> StreamExecutionEnvironment.getExecutionEnvironment();
> StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env);
> DataStream<String> dataStream = env.fromElements("Alice", "Bob", "John");
> Schema.Builder builder = Schema.newBuilder();
> builder.column("f0",DataTypes.of(String.class)).withComment("this is a
> comment");
> Table table = tableEnv.fromDataStream(dataStream,
> builder.build()).as("user_name");
> table.getResolvedSchema();
> table.printSchema();
> }
>
> Its output is:
> (
> `user_name` STRING
> )
>
> My question is, if the comment is lost, what should I do to display the
> comment information?
>
> What I need is that the result is
> (
> `user_name` STRING COMMENT 'this is a comment'
> )
>
>
