Re: Add RESPECT/IGNORE NULLS and FROM FIRST/LAST options - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Add RESPECT/IGNORE NULLS and FROM FIRST/LAST options
Date
Msg-id 2887229.1737333094@sss.pgh.pa.us
Whole thread Raw
In response to Re: Add RESPECT/IGNORE NULLS and FROM FIRST/LAST options  (Tatsuo Ishii <ishii@postgresql.org>)
Responses Re: Add RESPECT/IGNORE NULLS and FROM FIRST/LAST options
Re: Add RESPECT/IGNORE NULLS and FROM FIRST/LAST options
List pgsql-hackers
Tatsuo Ishii <ishii@postgresql.org> writes:
>> I would think that
>> IGNORE NULLS is potentially useful for user-defined window functions,
>> and we should not be building anything that restricts the feature to
>> specific functions.

> So you want to allow to use IGNORE NULLS to other built-in window
> functions?

No, there needs to be a way for the individual window function to
throw error if that's specified for a function that can't handle it.
I'm just saying I don't want that to be hard-wired in some centralized
spot.

            regards, tom lane



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