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https://issues.apache.org/jira/browse/FLINK-7446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16131261#comment-16131261
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Fabian Hueske commented on FLINK-7446:
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I think the existing {{DefinedRowtimeAttribute}} interface can be used for that
as well. If the field name returned by
{{DefinedRowtimeAttribute.getRowtimeAttribute()}} is included in the field
names returned by {{TableSource}} we can use the existing field as time
indicator attribute.
> Support to define an existing field as the rowtime field for TableSource
> ------------------------------------------------------------------------
>
> Key: FLINK-7446
> URL: https://issues.apache.org/jira/browse/FLINK-7446
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Jark Wu
>
> Currently {{DefinedRowtimeAttribute}} can define an appended rowtime field
> for a {{TableSource}}. But it would be helpful if we can support to define an
> existing field as the rowtime field. Just like registering a DataStream, the
> rowtime field can be appended but also can replace an existing field.
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