Re: oid2name : add objects file path

On Tue, Oct 7, 2025 at 11:47 AM Euler Taveira <euler(at)eulerto(dot)com> wrote:

> 1. The database query is wrong because it is considering that all databases are
> in the default tablespace. If you create a database in a different tablespace
> you will notice the mistake.

Thank you for your feedback.

Indeed, the path is wrong if the default tablespace is not used.
I did not find a simple way to retrieve the database path (to my
knowledge there is
no function like pg_database_location() or something similar), so I have removed
this part from the patch for now.

>
> 2. I suggest that you change one of the examples (maybe the last one) to
> illustrate this feature.

Here is a new example by adding a table in a different tablespace :

$ oid2name -p 5435 -d b1 -t t2 -x
From database "b1":
Filenode Table Name Oid Schema Tablespace
Filepath
----------------------------------------------------------------------------------------------
16403 t2 16403 public tblspc1
pg_tblspc/16393/PG_19_202510082/16384/16403

> Since you are in this area, you could create a separate patch for show the
> tablespace location (-s option). Use pg_tablespace_location function.
>
I attached a new patch to add a column Tablespace Location to the -s option.

$ oid2name -p 5435 -s
All tablespaces:
Oid Tablespace Name Tablespace Location
---------------------------------------------
1663 pg_default
1664 pg_global
16393 tblspc1 /mnt/tblspc1/pg

> Register your patch for the next commitfest so we don't lose track of it. [1]
> If you don't have an account, the 'Log In' link will redirect you to the page
> to create a new one or even allow you to use a third party sign in.
>
> [1] https://commitfest.postgresql.org/56/
>

Done.
https://commitfest.postgresql.org/patch/6111/

Regards
David Bidoc