| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Florian Pflug <fgp(at)phlo(dot)org> |
| Cc: | Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>, David Rowley <dgrowleyml(at)gmail(dot)com>, Kevin Grittner <kgrittn(at)ymail(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, Greg Stark <stark(at)mit(dot)edu>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [PATCH] Negative Transition Aggregate Functions (WIP) |
| Date: | 2014-04-11 17:42:26 |
| Message-ID: | 32140.1397238146@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Florian Pflug <fgp(at)phlo(dot)org> writes:
> Yes, the idea had come up at some point during the review discussion. I
> agree that it's only worthwhile if it works for state type internal - though
> I think there ought to be a way to allow that. We could for example simply
> decree that the initfunc's first parameter must be of type internal if it's
> return type is, and then just pass NULL for that parameter.
I had thought about that, but it doesn't really work since it'd be
violating the strictness spec of the function.
regards, tom lane
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