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