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Posted to issues@calcite.apache.org by "shampoo liu (Jira)" <ji...@apache.org> on 2022/03/06 11:53:00 UTC

[jira] [Commented] (CALCITE-565) Implement windowed aggregate in interpreter

    [ https://issues.apache.org/jira/browse/CALCITE-565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17501947#comment-17501947 ] 

shampoo liu commented on CALCITE-565:
-------------------------------------

any progress on this task ?

> Implement windowed aggregate in interpreter
> -------------------------------------------
>
>                 Key: CALCITE-565
>                 URL: https://issues.apache.org/jira/browse/CALCITE-565
>             Project: Calcite
>          Issue Type: Sub-task
>            Reporter: Julian Hyde
>            Priority: Major
>
> Implement windowed aggregate (the Window relational expression) in the interpreter.
> Aggregate functions could be implemented by generating Java ASTs (via AggImplementor) but it would be simpler to implement them using AggregateFunctionImpl, as if they were user-defined aggregates. (AggregateNode already does this.)



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