From: Andrew Gierth <andrew@tao11.riddles.org.uk>
To: Ogden Brash <info@litika.com>
Cc: pgsql-performance@lists.postgresql.org
Subject: Re: Modification of data in base folder and very large tables
In-Reply-To: 
 <CAFCR_K3KraRUTKxZeYEGVyNd_6VMa+cgdW_WYn6k4JZz_m3prA@mail.gmail.com>
	(Ogden Brash's message of "Tue, 8 Oct 2019 13:20:43 -0700")
Message-ID: <87lftuz56q.fsf@news-spur.riddles.org.uk>
References: 
 <CAFCR_K3KraRUTKxZeYEGVyNd_6VMa+cgdW_WYn6k4JZz_m3prA@mail.gmail.com>
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Date: Wed, 09 Oct 2019 09:42:18 +0100
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>>>>> "Ogden" == Ogden Brash <info@litika.com> writes:

 Ogden> I have a question about the files in
 Ogden> .../data/postgresql/11/main/base, specifically in relation to
 Ogden> very large tables and how they are written.

 Ogden> I have been attempting to restore a relatively large database
 Ogden> with pg_restore and it has been running for more than a week.

Did you do the restore into a completely fresh database? Or did you make
the mistake of creating tables and indexes first?

What relation does the filenode 27083 correspond to? You can find that
with:

select oid::regclass from pg_class
 where pg_relation_filenode(oid) = '27083';

-- 
Andrew (irc:RhodiumToad)