Re: Multiple Storage per Tablespace, or Volumes

From: Andrew Sullivan <ajs(at)crankycanuck(dot)ca>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Multiple Storage per Tablespace, or Volumes
Date: 2007-02-20 16:04:33
Message-ID: 20070220160433.GA12596@phlogiston.dyndns.org
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On Mon, Feb 19, 2007 at 07:10:52PM -0800, David Fetter wrote:
>
> Isn't this one of the big use cases for table partitioning?

Sure, but you can't detach that data in the meantime, AFAIK. Maybe
I've missed something.

If I have 10 years of finace data, and I have to keep it all online
all the time, my electricity costs alone are outrageous. If I can
know _where_ the data is without being able to get it until I've
actually made it available, then my query tools could be smart enough
to detect "table partitioned; this data is offline", I could roll
back to my savepoint, return a partial result set to the user, and
tell it "call back in 24 hours for your full report".

Yes, I know, hands waving in the air. But I already said I was
having a "you know what would be sweet" moment.

A

--
Andrew Sullivan | ajs(at)crankycanuck(dot)ca
This work was visionary and imaginative, and goes to show that visionary
and imaginative work need not end up well.
--Dennis Ritchie

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