[jira] [Commented] (FLINK-10973) Add Map operator to Table API

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-10973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16696703#comment-16696703 ] 

ASF GitHub Bot commented on FLINK-10973:
----------------------------------------

dianfu opened a new pull request #7167: [FLINK-10973] [table] Add support for map to table API
URL: https://github.com/apache/flink/pull/7167
 
 
   ## What is the purpose of the change
   
   *This pull request adds support for map to table API. *
   
   ## Brief change log
   
     - *Added map to table API*
   
   ## Verifying this change
   
   This change added tests and can be verified as follows:
   
     - *Added test in MapITCase/MapTest/MapValidationTest*
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (no)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no)
     - The serializers: (no)
     - The runtime per-record code paths (performance sensitive): (no)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no)
     - The S3 file system connector: (no)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (yes)
     - If yes, how is the feature documented? (docs)
   

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> Add Map operator to Table API
> -----------------------------
>
>                 Key: FLINK-10973
>                 URL: https://issues.apache.org/jira/browse/FLINK-10973
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API & SQL
>            Reporter: sunjincheng
>            Assignee: Dian Fu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.8.0
>
>
> Add Map operator to Table API as described in [Google doc|https://docs.google.com/document/d/1tnpxg31EQz2-MEzSotwFzqatsB4rNLz0I-l_vPa5H4Q/edit#heading=h.q23rny2iglsr]
> The usage：
> {code:java}
> val res = tab
>    .map(fun: ScalarFunction)  // output has columns 'a, 'b, 'c
>    .select('a, 'c)
> {code}



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