From: | "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com> |
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To: | "Rod Taylor" <pg(at)rbt(dot)ca> |
Cc: | "Mark Woodward" <pgsql(at)mohawksoft(dot)com>, "Hannu Krosing" <hannu(at)skype(dot)net>, "Christopher Browne" <cbbrowne(at)acm(dot)org>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: vacuum, performance, and MVCC |
Date: | 2006-06-22 17:42:47 |
Message-ID: | 36e682920606221042v2a321189p9ffc79abea14c77a@mail.gmail.com |
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Lists: | pgsql-hackers |
On 6/22/06, Rod Taylor <pg(at)rbt(dot)ca> wrote:
> If you INSERT into multiple partitions (by time -- say one per minute)
> and TRUNCATE periodically (30 minute old partitions for 30 minute
> expiry) it works much better. Expiring the session is quite fast as well
> since they'll go away with the truncate.
Forgive me if this sounds rude because I'm not meaning it as such, but
this suggestion sounds like a MySQL-ish hack. No doubt it would work,
but should an application-writer have to incur the cost of writing
something different because the database can't handle it? I remember
having to write subselect code in PHP because MySQL couldn't do it...
not what I would call a *solution* by any mean.
--
Jonah H. Harris, Software Architect | phone: 732.331.1300
EnterpriseDB Corporation | fax: 732.331.1301
33 Wood Ave S, 2nd Floor | jharris(at)enterprisedb(dot)com
Iselin, New Jersey 08830 | http://www.enterprisedb.com/
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