Message-ID: <1521193252.2501.2.camel@cybertec.at>
Subject: Re: restore OIDs
From: Laurenz Albe <laurenz.albe@cybertec.at>
To: Dino Mifsud <dinomifsud74@gmail.com>, pgsql-admin@lists.postgresql.org
Date: Fri, 16 Mar 2018 10:40:52 +0100
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Organization: Cybertec
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Dino Mifsud wrote:
> I have a table where I am  storing images in a column of type OID which is
> pointing to the pg_largeobject table. 
> 
> Now when I try do a pg_dump and restore just a schema from one database to another
> with the below commands, the OID column in the table is correctly restored with the
> original number  but the pg_largeobject table in the restored database does not contain
> these OID entries that store the actual image bytes and therefore the images are not restored.
>
> pg_dump --data-only --host localhost --port 5432 --username "postgres" --schema=myschema \
>         --format custom --verbose --file "/Users/myuser/Work/databases_backup/original.backup" "db1"
>
> pg_restore --host localhostd --port 5432 --username "postgres" --schema=myshcema \
>            --disable-triggers -d db2 "/Users/myuser/Work/databases_backup/original.backup"
> 
> 
> How can I dump and restore correctly just a particular schema?

If you use the --schema option, but want to dump large objects too, add the --blobs option.

Yours,
Laurenz Albe
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