[jira] [Commented] (FLINK-7471) Improve bounded OVER support non-retract method AGG

["Fabian Hueske (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-7471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16131336#comment-16131336 ] 

Fabian Hueske commented on FLINK-7471:
--------------------------------------

Are you proposing to compute all aggregates for each record completely from scratch?
How would we separate retracting and non-retracting aggregation functions from each other? 
Does this require a major refactoring of the code-generation and aggregation infrastructure that we implemented some months ago?

> Improve bounded OVER support non-retract method AGG
> ---------------------------------------------------
>
>                 Key: FLINK-7471
>                 URL: https://issues.apache.org/jira/browse/FLINK-7471
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>            Reporter: sunjincheng
>            Assignee: sunjincheng
>
> Currently BOUNDED OVER WINDOW only support have {{retract}} method AGG. In this JIRA. will add non-retract method support.
> What do you think? [~fhueske]



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