Re: [WIP] cache estimates, cache access cost

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Cédric Villemain <cedric(dot)villemain(dot)debian(at)gmail(dot)com>
Cc: Greg Smith <greg(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [WIP] cache estimates, cache access cost
Date: 2011-06-14 20:31:32
Message-ID: 1308083462-sup-1150@alvh.no-ip.org
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Excerpts from Cédric Villemain's message of mar jun 14 10:29:36 -0400 2011:

> Attached are updated patches without the plugin itself. I've also
> added the cache_page_cost GUC, this one is not per tablespace, like
> others page_cost.
>
> There are 6 patches:
>
> 0001-Add-reloscache-column-to-pg_class.patch

Hmm, do you really need this to be a new column? Would it work to have
it be a reloption?

--
Álvaro Herrera <alvherre(at)commandprompt(dot)com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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