| From: | "Heikki Linnakangas" <heikki(at)enterprisedb(dot)com> |
|---|---|
| To: | "Simon Riggs" <simon(at)2ndquadrant(dot)com> |
| Cc: | Hans-Jürgen Schönig <postgres(at)cybertec(dot)at>, "daveg" <daveg(at)sonic(dot)net>, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Andrew Dunstan" <andrew(at)dunslane(dot)net>, "PG Hackers" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Mini improvement: statement_cost_limit |
| Date: | 2008-08-05 06:37:04 |
| Message-ID: | 4897F510.20702@enterprisedb.com |
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| Thread: | |
| Lists: | pgsql-hackers |
Simon Riggs wrote:
> On Sun, 2008-08-03 at 22:09 +0200, Hans-Jürgen Schönig wrote:
>
>>> Another alternative would be to have a plugin that can examine the
>>> plan
>>> immediately after planner executes, so you can implement this
>>> yourself,
>>> plus some other possibilities.
>>>
>
>> this would be really fancy.
>> how could a plugin like that look like?
>
> Hmm...thinks: exactly like the existing planner_hook().
>
> So, rewrite this as a planner hook and submit as a contrib module.
Now that's a good idea!
I personally don't think this feature is a good idea, for all the
reasons others have mentioned, but as a pgfoundry project it can be
downloaded by those who want it, and perhaps prove its usefulness for
others as well.
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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