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https://issues.apache.org/jira/browse/FLINK-6968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16397984#comment-16397984
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ASF GitHub Bot commented on FLINK-6968:
---------------------------------------

Github user liurenjie1024 commented on the issue:

    https://github.com/apache/flink/pull/5688
  
    @twalthr Please help to review this.


> Store streaming, updating tables with unique key in queryable state
> -------------------------------------------------------------------
>
>                 Key: FLINK-6968
>                 URL: https://issues.apache.org/jira/browse/FLINK-6968
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table API & SQL
>            Reporter: Fabian Hueske
>            Assignee: Renjie Liu
>            Priority: Major
>
> Streaming tables with unique key are continuously updated. For example 
> queries with a non-windowed aggregation generate such tables. Commonly, such 
> updating tables are emitted via an upsert table sink to an external datastore 
> (k-v store, database) to make it accessible to applications.
> This issue is about adding a feature to store and maintain such a table as 
> queryable state in Flink. By storing the table in Flnk's queryable state, we 
> do not need an external data store to access the results of the query but can 
> query the results directly from Flink.



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