| From: | Greg Stark <stark(at)mit(dot)edu> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Florian Pflug <fgp(at)phlo(dot)org>, 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>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [PATCH] Negative Transition Aggregate Functions (WIP) |
| Date: | 2014-03-06 15:33:24 |
| Message-ID: | CAM-w4HN6_r+e8NPTQQ_UAzY4hiEyUDNNb3kUGy8Bz8wVz0WP4g@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Mar 5, 2014 at 10:49 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> [ shrug... ] They can see whether the Window plan node is where the time
> is going. It's not apparent to me that the extra numbers you propose to
> report will edify anybody.
Perhaps just saying "Incremental Window Function" versus "Iterated
Window Function" or something like that be sufficient? At least that
way query tuning quidelines have a keyword they can say to watch out
for. And someone trying to figure out *why* the time is being spent in
this node has something they might notice a correlation with.
--
greg
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