Re: Sv: Re: Sv: Re: Does PostgreSQL check database integrity at startup?

From: Stephen Frost <sfrost(at)snowman(dot)net>
To: Andreas Joseph Krogh <andreas(at)visena(dot)com>
Cc: pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: Sv: Re: Sv: Re: Does PostgreSQL check database integrity at startup?
Date: 2017-12-31 01:03:15
Message-ID: 20171231010315.GN2416@tamriel.snowman.net
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general

Greetings Andreas,

* Andreas Joseph Krogh (andreas(at)visena(dot)com) wrote:
> Here's a simple test-case:
>  
> createdb test
> test=# create table foo(id serial primary key, name varchar not null);
> test=# CREATE TYPE BigIntTuple2 AS (f1 bigint, f2 bigint);

Hah, appears we allocate a relfilenode to types too, though it's not
entirely clear to me why (evidently, they're not used..).

Anyhow, adding a filter on relkind addresses it (though it's not very
future-proof, unfortunately):

SELECT
quote_ident(nsp.nspname) || '.' || quote_ident(c.relname),
s.setting || '/base/' || db.oid || '/' || c.relfilenode,
(pg_stat_file(s.setting || '/base/' || db.oid || '/' || c.relfilenode)).size as size
FROM
pg_settings s
JOIN pg_database db on (s.name = 'data_directory')
JOIN pg_class c on (datname = current_database())
JOIN pg_namespace nsp on (c.relnamespace = nsp.oid)
WHERE
relfilenode <> 0
AND nsp.nspname !~ '^pg_'
AND nsp.nspname <> 'information_schema'
AND c.relkind in ('r','i','m','p');

Thanks!

Stephen

In response to

Browse pgsql-general by date

  From Date Subject
Next Message Jan Wieck 2017-12-31 03:10:59 Re: Does PostgreSQL check database integrity at startup?
Previous Message Andreas Joseph Krogh 2017-12-31 00:27:41 Sv: Re: Sv: Re: Does PostgreSQL check database integrity at startup?