Re: Tablespace OID, database OID, relfilenode

From: Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>
To: Wiwwo Staff <wiwwo(at)wiwwo(dot)com>, pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: Tablespace OID, database OID, relfilenode
Date: 2023-01-17 15:01:30
Message-ID: 1505292e2bedcfcf13e9334f686946742b9db7f2.camel@cybertec.at
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On Tue, 2023-01-17 at 15:48 +0100, Wiwwo Staff wrote:
> Quick and to the point:
>
> If i execute
> select pg_relation_filepath('pgbench_accounts');
>
> I get
>  pg_relation_filepath
> ----------------------
>  base/5/16398
>
> where "base" is tablespace, but not tablespace OID, nor tablespace name.
> How do I link it to get from "base" the tablespace OID?
>
> Or, in other words, given table  pgbench_accounts, how do I get tablespace OID,
> database OID and relfilenode so that I can use this info to filter output of pg_waldump?

The tablespace OID is 1663, since "base" is the default tablespace "pg_default".

Yours,
Laurenz Albe
--
Cybertec | https://www.cybertec-postgresql.com

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