Re: pg_restore option --clean

[Guillaume Lelarge <guillaume@xxxxxxxxxxxx>]

Hi,

Le mer. 21 févr. 2024 à 15:01, Fabrice Chapuis <fabrice636861@xxxxxxxxx> a écrit :

But it does not work for the structure

# CONSTRAINT test FOREIGN KEY (id_tab_key) REFERENCES tab(id) ON DELETE cascade ON UPDATE CASCADE

ERROR:  cannot drop table tab because other objects depend on it

Yeah, ON DELETE and ON CASCADE are not the answer to your question.

pg_restore won't drop objects in cascade. There's no option for that. I'd guess the reason is that --clean only cleans the object it will restore. If other objects depend on it, pg_restore has no way to know how to recreate them, and you would end up with a not completely restored database.

Regards.

 

Regards,

Fabrice

On Wed, Feb 21, 2024 at 12:47 PM M Sarwar <sarwarmd02@xxxxxxxxxxx> wrote:

Look around for

ALTER TABLE TABLE-NAME

  ADD constraint fk-name foreign key col-name refers to tab-name ( col-name )

     on UPDATE cascase

   on DELETE CASCADE

;

Good luck,

Sarwar

---

From: Fabrice Chapuis <fabrice636861@xxxxxxxxx>
Sent: Wednesday, February 21, 2024 4:17 AM
To: pgsql-admin@xxxxxxxxxxxxxxxxxxxx <pgsql-admin@xxxxxxxxxxxxxxxxxxxx>
Subject: Fwd: pg_restore option --clean

 

Hi,

The --clean option of pg_restore allows you to replace an object before being imported. However, dependencies such as foreign keys or views prevent the deletion of the object. Is there a way to add the cascade option to force the deletion?

Thanks for helping

Fabrice

--

Guillaume.