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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5280) Extend TableSource to support nested data
Date Tue, 27 Dec 2016 18:03:58 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15780914#comment-15780914
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ASF GitHub Bot commented on FLINK-5280:
---------------------------------------

Github user mushketyk commented on the issue:

    https://github.com/apache/flink/pull/3039
  
    Hi @fhueske, @wuchong 
    
    Thank you for your reviews.
    
    I think creating three abstract classes is a good idea, since we don't expect any new
types of table sources, so there will not be a lot of combinations.
    
    I'll try to update the PR tomorrow according to all current comments.


> Extend TableSource to support nested data
> -----------------------------------------
>
>                 Key: FLINK-5280
>                 URL: https://issues.apache.org/jira/browse/FLINK-5280
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>    Affects Versions: 1.2.0
>            Reporter: Fabian Hueske
>            Assignee: Ivan Mushketyk
>
> The {{TableSource}} interface does currently only support the definition of flat rows.

> However, there are several storage formats for nested data that should be supported such
as Avro, Json, Parquet, and Orc. The Table API and SQL can also natively handle nested rows.
> The {{TableSource}} interface and the code to register table sources in Calcite's schema
need to be extended to support nested data.



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