Re: Disk is filling up with large files. How can I clean? - Mailing list pgsql-general

From Ron Johnson
Subject Re: Disk is filling up with large files. How can I clean?
Date
Msg-id CANzqJaB3D=P6y=zosX3ZyB3dELAT=hm4uzWGZRF3+g+_O6m2xg@mail.gmail.com
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In response to Re: Disk is filling up with large files. How can I clean?  (Philip Semanchuk <philip@americanefficient.com>)
List pgsql-general
On Wed, Oct 9, 2024 at 9:02 AM Philip Semanchuk <philip@americanefficient.com> wrote:

> On Oct 9, 2024, at 5:52 AM, Torsten Förtsch <tfoertsch123@gmail.com> wrote:
>
> Filenames like 16665, 16665.1, 16665.2 etc all represent the same table (or similar). The number 16665 is called the file node.
>
> To get a list of file nodes for a specific database you can run:
>
> SELECT oid::regclass::text, relfilenode FROM pg_class;
>
> The /16384/ in the path represents the database. To decipher that you can run:
>
> SELECT datname, oid FROM pg_database;
>
> Once you have all that information, you know which database to connect to and which tables are big. Then you can DROP/DELETE/TRUNCATE or so.

Mikael, if you’re unaware of VACUUM FULL (as opposed to just VACUUM), you should read about that too.

VACUUM FULL with an almost-full disk probably isn't the wisest idea.

--
Death to <Redacted>, and butter sauce.
Don't boil me, I'm still alive.
<Redacted> crustacean!

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