[jira] [Commented] (FLINK-6968) Store streaming, updating tables with unique key in queryable state

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-6968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16559155#comment-16559155 ] 

ASF GitHub Bot commented on FLINK-6968:
---------------------------------------

liurenjie1024 opened a new pull request #6434: [FLINK-6968][Table API & SQL] Add Queryable table sink.
URL: https://github.com/apache/flink/pull/6434
 
 
   ## What is the purpose of the change
   
   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.
   
   ## Brief change log
   
     - *Add a QueryableStateTableSink.*
     - *States are queryable.*
   
   ## Verifying this change
   
   This change added tests and can be verified as follows:
     - *Added test that validates that states will be stored.*
   
   
   ## Documentation
   
     - Does this pull request introduce a new feature? yes
     - If yes, how is the feature documented? docs
   

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


> 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
>              Labels: pull-request-available
>
> 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.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)