| From: | Decibel! <decibel(at)decibel(dot)org> |
|---|---|
| To: | Jonah H(dot) Harris <jonah(dot)harris(at)gmail(dot)com> |
| Cc: | "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Zdenek Kotala" <Zdenek(dot)Kotala(at)sun(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: WIP: Page space reservation (pgupgrade) |
| Date: | 2008-11-10 00:55:25 |
| Message-ID: | CCF3CD20-1EC9-4DED-88BC-24A00735C74E@decibel.org |
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| Lists: | pgsql-hackers |
On Nov 8, 2008, at 8:35 PM, Jonah H. Harris wrote:
> On Sat, Nov 8, 2008 at 8:08 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM> writes:
>>> Attached patch allows to setup storage parameter for space
>>> reservation.
>>
>> What is the point of this?
>
> That's my question. Why is this needed at all?
I suspect this is to deal with needing to reserve space in a cluster
that you're planning on upgrading to a new version that would take
more space, but I think the implementation is probably too simplistic.
--
Decibel!, aka Jim C. Nasby, Database Architect decibel(at)decibel(dot)org
Give your computer some brain candy! www.distributed.net Team #1828
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