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From: Adrian Klaver <[email protected]>
To: Ron Johnson <[email protected]>
To: pgsql-general <[email protected]>
Subject: Re: Errors when restoring backup created by pg_dumpall
Date: Mon, 9 Dec 2024 21:31:15 -0800
Message-ID: <[email protected]> (raw)
In-Reply-To: <CANzqJaA85SC0SVA7KKJKxPXC3qUog9mXVErQWfZz+arvqvtCsg@mail.gmail.com>
References: <[email protected]>
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	<CANzqJaA85SC0SVA7KKJKxPXC3qUog9mXVErQWfZz+arvqvtCsg@mail.gmail.com>

On 12/9/24 20:54, Ron Johnson wrote:
> On Mon, Dec 9, 2024 at 11:24 PM David G. Johnston 
> <[email protected] <mailto:[email protected]>> wrote:
> 
>     On Monday, December 9, 2024, Ron Johnson <[email protected]
>     <mailto:[email protected]>> wrote:
> 
>         On Sat, Nov 30, 2024 at 10:36 PM Adrian Klaver
>         <[email protected] <mailto:[email protected]>>
>         wrote:
>         [snip]
> 
>             In future schema qualify all references.
> 
>             For now in the dump file you could search for
> 
>             SELECT pg_catalog.set_config('search_path', '', false);
> 
>             and set to
> 
>             SELECT pg_catalog.set_config('search_path', 'public', false);
> 
> 
>         What if this had been a pg_dump --format={custom,directory} backup?
> 
> 
>     pg_restore has a mode where it can dump out SQL to a script instead
>     of directly restoring to the database.
> 
> 
> That Would Be Very, Very Bad if this were a database big enough to have 
> required a multi-threaded dump.

 From the original post:

https://www.postgresql.org/message-id/6a6439f1-8039-44e2-8fb9-59028f7f2014%40mailbox.org

"My HDD recently failed so I'm trying to restore my backup, but I'm
running into some errors."

There really was no choice.

Not tested but in the pg_restore case I could see at least trying:

1) pg_restore -s  -f schema_definitions.sql  custom_format_file

2) Then making the change in the search_path in schema_definitions.sql 
and then load the schema in the database using psql

3) Then pg_restore -a -j <number_of_jobs> custom_format_file.

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

-- 
Adrian Klaver
[email protected]

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