| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Tatsuo Ishii <ishii(at)postgresql(dot)org> |
| Cc: | ojford(at)gmail(dot)com, vik(at)postgresfriends(dot)org, pgsql-hackers(at)postgresql(dot)org, andrew(at)tao11(dot)riddles(dot)org(dot)uk, david(at)fetter(dot)org, krasiyan(at)gmail(dot)com |
| Subject: | Re: Add RESPECT/IGNORE NULLS and FROM FIRST/LAST options |
| Date: | 2025-01-20 00:31:34 |
| Message-ID: | 2887229.1737333094@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Tatsuo Ishii <ishii(at)postgresql(dot)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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