[jira] [Commented] (CALCITE-2625) Function Specific Sql Window Unparsing where Framing Not Allowed

["Julian Hyde (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-2625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16648569#comment-16648569 ] 

Julian Hyde commented on CALCITE-2625:
--------------------------------------

I agree.

Note that we already have {{boolean SqlOperator.allowsFraming()}}. We just need to use it when generating SQL.

Can you change the Jira case title to something more specific, e.g. about RANK generating invalid SQL.

> Function Specific Sql Window Unparsing where Framing Not Allowed
> ----------------------------------------------------------------
>
>                 Key: CALCITE-2625
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2625
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>            Reporter: KrishnaKant Agrawal
>            Assignee: Julian Hyde
>            Priority: Major
>
> The SQL standard says:- 
> If <ntile function>, <lead or lag function>, <rank function type> or ROW_NUMBER is specified, then: … The window framing clause of WDX shall not be present.
> So, Calcite should not print the Window Frames when such functions are used.



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