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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-8104) Fix Row value constructor
Date Wed, 29 Nov 2017 14:50:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-8104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16270873#comment-16270873
] 

ASF GitHub Bot commented on FLINK-8104:
---------------------------------------

Github user twalthr commented on a diff in the pull request:

    https://github.com/apache/flink/pull/5040#discussion_r153801369
  
    --- Diff: docs/dev/table/tableApi.md ---
    @@ -2993,6 +2993,30 @@ MAP.at(ANY)
       </tbody>
     </table>
     
    +<table class="table table-bordered">
    +  <thead>
    +    <tr>
    +      <th class="text-left" style="width: 40%">Row functions</th>
    +      <th class="text-center">Description</th>
    +    </tr>
    +  </thead>
    +
    +  <tbody>
    +
    +    <tr>
    +      <td>
    +        {% highlight java %}
    +row(ANY, [, ANY]*)
    +{% endhighlight %}
    +      </td>
    +      <td>
    +        <p>Creates a row from a list of values. row can be access via <a href="tableApi.html#built-in-functions">built-in
functions</a> (see Value access functions section) </p>
    --- End diff --
    
    `A row is a composite type that can row can be access via <a href="tableApi.html#built-in-functions">value
access functions</a>.`


> Fix Row value constructor
> -------------------------
>
>                 Key: FLINK-8104
>                 URL: https://issues.apache.org/jira/browse/FLINK-8104
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API & SQL
>            Reporter: Rong Rong
>            Assignee: Rong Rong
>
> Support Row value constructor which is currently broken. 
> See 
> {code:java}
> // flink-libraries/flink-table/src/test/scala/org/apache/flink/table/expressions/SqlExpressionTest.scala
>   @Test
>   def testValueConstructorFunctions(): Unit = {
>     // TODO we need a special code path that flattens ROW types
>     // testSqlApi("ROW('hello world', 12)", "hello world") // test base only returns
field 0
>     // testSqlApi("('hello world', 12)", "hello world") // test base only returns field
0
>     // ...
>   }
> {code}



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