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Posted to issues@flink.apache.org by "Jun Zhang (JIRA)" <ji...@apache.org> on 2018/11/22 03:31:00 UTC

[jira] [Commented] (FLINK-9870) Support field mapping and time attributes for table sinks

    [ https://issues.apache.org/jira/browse/FLINK-9870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16695521#comment-16695521 ] 

Jun Zhang commented on FLINK-9870:
----------------------------------

[~twalthr] I assume time attributes are not relevant to table sinks and only make sense when registering table source, why these interfaces need to be implemented by table sinks? 

> Support field mapping and time attributes for table sinks
> ---------------------------------------------------------
>
>                 Key: FLINK-9870
>                 URL: https://issues.apache.org/jira/browse/FLINK-9870
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API &amp; SQL
>    Affects Versions: 1.6.0
>            Reporter: Timo Walther
>            Assignee: Timo Walther
>            Priority: Major
>             Fix For: 1.8.0
>
>
> FLINK-7548 reworked the table source design and implemented the interfaces {{DefinedFieldMapping}}, {{DefinedProctimeAttribute}}, and {{DefinedRowtimeAttributes}}.
> However, these interfaces need to be implemented by table sinks as well in order to map a table back into a sink similar how source do it for reading input data.
> The current unified sink design assumes that this is possible.



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