From: Bruce Momjian <bruce@momjian.us>
To: Klaus P. Pieper <kpi6288@gmail.com>
Cc: PG-General Mailing List <pgsql-general@postgresql.org>
Subject: Re: pg_upgrade --link on Windows
Date: Wed, 14 Jun 2017 12:00:09 -0400
Message-ID: <20170614160009.GA4751@momjian.us> (raw)
In-Reply-To: <00be01d2e4e4$18483ef0$48d8bcd0$@gmail.com>
References: <8da3dbd9-7daf-5589-0cc8-0eede930a492@codata.eu>
<20170609140724.GB21215@momjian.us>
<a892509c-0eb4-42a4-1370-6cb0ac3bc1c3@codata.eu>
<0405d125-929b-ab4a-b7be-d49c09e7c056@aklaver.com>
<20170613200748.GB13879@momjian.us>
<00be01d2e4e4$18483ef0$48d8bcd0$@gmail.com>
List-Unsubscribe: <mailto:majordomo@postgresql.org?body=unsub%20pgsql-general>
On Wed, Jun 14, 2017 at 09:59:04AM +0200, Klaus P. Pieper wrote:
> > -----Ursprüngliche Nachricht-----
> >
> > I apologize for not being smarter on this thread. When I helped with the
> > Windows port, I was told Windows didn't have hard links for use by
> tablespace
> > directories, so I got it into my head that Windows didn't have hard links.
> > Therefore, when I was writing the docs, I called them junction points.
>
> It's actually not "Windows" providing hard links, it is the file system
> NTFS. FAT and its modern cousins don't provide hard links - but this will
> rarely be used for databases these days.
> However, ReFS (introduced with server 2012 and providing some new features
> like automatic integrity checks, clustering etc.) does no longer provide
> hard links.
> Are hard links used anywhere else but in pg_upgrade?
Nope, it is used only by transfer_relfile() calling linkFile().
--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
+ Ancient Roman grave inscription +
--
Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-docs@postgresql.org
Cc: bruce@momjian.us, kpi6288@gmail.com, pgsql-general@postgresql.org
Subject: Re: pg_upgrade --link on Windows
In-Reply-To: <20170614160009.GA4751@momjian.us>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox