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Posted to issues@calcite.apache.org by "Jark Wu (Jira)" <ji...@apache.org> on 2020/10/14 03:32:00 UTC

[jira] [Commented] (CALCITE-3780) SESSION Table-valued Function

    [ https://issues.apache.org/jira/browse/CALCITE-3780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17213566#comment-17213566 ] 

Jark Wu commented on CALCITE-3780:
----------------------------------

Hi all, what's the plan to support PARTITION BY syntax for SESSION window? Do we have an issue to track this?

> SESSION Table-valued Function
> -----------------------------
>
>                 Key: CALCITE-3780
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3780
>             Project: Calcite
>          Issue Type: Sub-task
>            Reporter: Rui Wang
>            Assignee: Rui Wang
>            Priority: Major
>             Fix For: 1.23.0
>
>
> We can create SESSION table-valued function to replace GROUP BY SESSION for inactive gap session functionality:
> {code:sql}
> SELECT *
> FROM TABLE SESSION (
>   data => TABLE Bid ,
>   timecol => DESCRIPTOR ( bidtime ) ,
>   keycol => DESCRIPTOR(key),
>   inactive_gap => INTERVAL '10' MINUTES )
> {code}
>  
>  



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