Re: withFormat(Csv) is undefined for the type BatchTableEnvironment

[Timo Walther]

Hi François,

you should read the documentation from top to bottom. The overview part 
[1] explains how everything plays together with examples.

Regards,
Timo

[1] 
https://ci.apache.org/projects/flink/flink-docs-master/dev/table/connect.html#overview

Am 30.08.18 um 10:41 schrieb Till Rohrmann:
Hi François,

as Vino said, the BatchTableEnvironment does not provide a 
`withFormat` method. Admittedly, the documentation does not state it 
too explicitly but you can only call the `withFormat` method on a 
table connector as indicated here [1]. If you think that you need to 
get the data from somewhere first before defining a format, then it 
becomes clear that you first need to define a connector.

[1] 
https://ci.apache.org/projects/flink/flink-docs-release-1.6/dev/table/connect.html#table-formats

Cheers,
Till

On Thu, Aug 30, 2018 at 4:46 AM vino yang <yanghua1...@gmail.com 
<mailto:yanghua1...@gmail.com>> wrote:

    Hi francois,

    Maybe you can refer to the comments of this source code?[1]

    
https://github.com/apache/flink/blob/master/flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/BatchTableEnvironment.scala#L143

    Thanks, vino.

    françois lacombe <francois.laco...@dcbrain.com
    <mailto:francois.laco...@dcbrain.com>> 于2018年8月29日周三
    下午10:54写道：

        Hi Vino,

        Thanks for this answer.
        I can't find in the docs where it's about BatchTableDescriptor
        
https://ci.apache.org/projects/flink/flink-docs-release-1.6/dev/table/connect.html#csv-format

        It sounds like the withFormat method is applied on
        TableEnvironment object on this page.

        All the best

        François

        2018-08-28 4:37 GMT+02:00 vino yang <yanghua1...@gmail.com
        <mailto:yanghua1...@gmail.com>>:

            Hi Francois,

            Yes, the withFormat API comes from an instance of
            BatchTableDescriptor, and the BatchTableDescriptor
            instance is returned by the connect API, so you should
            call BatchTableEnvironment#connect first.

            Thanks, vino.

            françois lacombe <francois.laco...@dcbrain.com
            <mailto:francois.laco...@dcbrain.com>> 于2018年8月27日周一
            下午10:26写道：

                Hi all,

                I'm currently trying to load a CSV file content with
                Flink 1.6.0 table API.
                This error is raised as a try to execute the code
                written in docs
                
https://ci.apache.org/projects/flink/flink-docs-release-1.6/dev/table/connect.html#csv-format

                ExecutionEnvironment env =
                ExecutionEnvironment.getExecutionEnvironment();
                BatchTableEnvironment tEnv =
                TableEnvironment.getTableEnvironment(env);
                tEnv.withFormat(new Csv(...));

                > Exception in thread "main" java.lang.Error:
                Unresolved compilation problem:
                   The method withFormat(Csv) is undefined for the
                type BatchTableEnvironment

                Am I wrong?

                Thanks in advance for any hint

                François