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https://issues.apache.org/jira/browse/FLINK-21435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-21435:
-----------------------------------
    Labels: pull-request-available  (was: )

> Add a SqlExpression in table-common
> -----------------------------------
>
>                 Key: FLINK-21435
>                 URL: https://issues.apache.org/jira/browse/FLINK-21435
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table SQL / API
>            Reporter: Timo Walther
>            Assignee: Timo Walther
>            Priority: Major
>              Labels: pull-request-available
>
> We introduced a dedicated function definition in FLINK-20971 to use SQL 
> expression in Table API. However, for usability and clear Maven module design 
> it is better add a dedicated `SqlExpression` in `table-common`. This allows 
> catalogs to specify an unresolved SQL expression without a dependency on 
> `table-api` furthermore we can add SQL specific functions to the new `Schema` 
> class.



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