[jira] [Commented] (FLINK-10974) Add FlatMap to TableAPI

[ASF GitHub Bot (JIRA)]

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https://issues.apache.org/jira/browse/FLINK-10974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16714210#comment-16714210
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ASF GitHub Bot commented on FLINK-10974:
----------------------------------------

dianfu commented on issue #7196: [FLINK-10974] [table] Add support for flatMap 
to table API
URL: https://github.com/apache/flink/pull/7196#issuecomment-445621944
 
 
   @sunjincheng121 Thanks a lot for the review. Have updated the PR accordingly.

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> Add FlatMap to TableAPI
> -----------------------
>
>                 Key: FLINK-10974
>                 URL: https://issues.apache.org/jira/browse/FLINK-10974
>             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 FlatMap 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
>    .flatMap(fun: TableFunction)  // output has columns 'a, 'b, 'c
>    .select('a, 'c)
> {code}



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