From: Steve Crawford <scrawford@pinpointresearch.com>
To: Lukasz Brodziak <lukasz.brodziak@gmail.com>
Cc: pgsql-admin@postgresql.org
Subject: Re: pg_attribute file in PostgreSQL 9.0
Date: Wed, 07 Mar 2012 06:35:03 -0800
Message-ID: <4F577217.3080204@pinpointresearch.com> (raw)
In-Reply-To: <CAGWYGjX4Lcu19BKFgX+ttz7bHypd1j-WbP98S_GGUSGe_VtBew@mail.gmail.com>
References: <CAGWYGjX4Lcu19BKFgX+ttz7bHypd1j-WbP98S_GGUSGe_VtBew@mail.gmail.com>
On 03/07/2012 05:14 AM, Lukasz Brodziak wrote:
> Hello,
>
> I have a question regarding pg_attribute. In which file it is stored
> because the relfilenode for it shows 0 and file 1249 isn't present in
> the folder.
>
select pg_relation_filepath('pg_attribute');
From the docs, relfilenode is:
"Name of the on-disk file of this relation; zero means this is a
"mapped" relation whose disk file name is determined by low-level state"
However the meaning "mapped relation" and "low-level state" are
difficult to divine from the docs. Go with the function.
Cheers,
Steve
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To: pgsql-admin@postgresql.org
Cc: scrawford@pinpointresearch.com, lukasz.brodziak@gmail.com
Subject: Re: pg_attribute file in PostgreSQL 9.0
In-Reply-To: <4F577217.3080204@pinpointresearch.com>
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