Re: Possible to use a table to tell what table to select from?

From: Frank Hagstrom <frank(dot)hagstrom(at)gmail(dot)com>
To: Richard Huxton <dev(at)archonet(dot)com>
Cc: pgsql-sql(at)postgresql(dot)org
Subject: Re: Possible to use a table to tell what table to select from?
Date: 2005-07-14 15:26:09
Message-ID: 28b4448e0507140826617e9c2a@mail.gmail.com
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On 7/14/05, Richard Huxton <dev(at)archonet(dot)com> wrote:
> Frank Hagstrom wrote:
> > Hello
> >
> > I've been thinking on a potential problem I might get in a distant
> > future, but once I started thinking on it I just as well had to
> > check...
> >
> > Is it possible to have say ~ 6 tables, where the first one is a
> > 'reference' to all the others (they all are with the same structure).
> > The other 5 or so have information stored in importance/access/age,
> > where one table will be only recent/important things, the other with a
> > bit lower priority and so on until the last table that can be really
> > huge and slow and used more like a storage ... Is it possible to write
> > an SQL query to let the first table figure out what table one will do
> > the actual select from?
>
> If the tables are all holding the same sort of thing, e.g. logs2003,
> logs2004, logs2005 etc. then you might want to look at partitioning.
> This is being looked at for the next version, check the archives of the
> hackers list.
>
> --
> Richard Huxton
> Archonet Ltd
>

Ah ok, thanks I'll look into the partitioning then :)

(not really logs, but will work in the same way, as I'm planning to
use it to hold revisions, but it will have the same format in the
tables...)

/Frank H

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