| From: | Shaun Thomas <sthomas(at)peak6(dot)com> |
|---|---|
| To: | Marti Raudsepp <marti(at)juffo(dot)org> |
| Cc: | Magnus Hagander <magnus(at)hagander(dot)net>, Svetlin Manavski <svetlin(dot)manavski(at)gmail(dot)com>, <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: seq scan in the case of max() on the primary key column |
| Date: | 2011-06-22 13:12:45 |
| Message-ID: | 4E01EA4D.3080205@peak6.com |
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| Thread: | |
| Lists: | pgsql-performance |
On 06/22/2011 04:55 AM, Marti Raudsepp wrote:
> With Jim Nasby's idea to use regclass instead of relation names, the
> function is now half its length and probably more reliable. There's no
> need to touch pg_class directly at all.
Sadly until we upgrade to EDB 9.0, I have to use my function. :) EDB 8.3
(which is really PostgreSQL 8.2) doesn't have a regclass->text
conversion. But I'll bookmark the wiki page anyway, so I can update my
function after upgrading. Heh.
--
Shaun Thomas
OptionsHouse | 141 W. Jackson Blvd. | Suite 800 | Chicago IL, 60604
312-676-8870
sthomas(at)peak6(dot)com
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