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Message-ID: <4E7008FC.5070601@ringerc.id.au>
Date: Wed, 14 Sep 2011 09:53:00 +0800
From: Craig Ringer <ringerc@ringerc.id.au>
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To: MirrorX <mirrorx@gmail.com>
CC: pgsql-admin@postgresql.org
Subject: Re: pg_upgrade --link
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On 09/14/2011 03:38 AM, MirrorX wrote:
> hello to all,
>
> i have tried pg_upgrade to upgrade from 8.4 to 9.0. the operation was
> completed succesfully. i only have one question:
>
> i did the procedure twice. once without the 'link (-k) option' and one with
> it. obviously the attempt with the link option was much faster. but, what
> does link mean here? symbolic link? i saw that after the procedure the old
> 'data' folder was there too, and i could delete it, so i guess the answer is
> not symbolic link. so what does that link mean? thx in advance

http://en.wikipedia.org/wiki/Hard_link

--
Craig Ringer