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From: Tom Lane <[email protected]>
To: Sylvain Cuaz <[email protected]>
Cc: [email protected]
Subject: Re: Restoring only a subset of schemas
Date: Mon, 17 Mar 2025 11:29:36 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

Sylvain Cuaz <[email protected]> writes:
>      Now if I want to restore from a full dump of this DB, but with only one "cXXX" and the "Common" 
> schema :
> - if I pass --create --schema=Common, then the CREATE SCHEMA is missing, i.e. it only emits data 
> inside "Common" and the restore fails.
> - if I could pass --create --exclude-schema='c*' (fictional notation as patterns are only recognized 
> by pg_dump), then all schemas would be created, with no data inside except for "Common". Creating 
> all schemas is a waste of time, but more importantly would make restoring other schemas more 
> difficult (e.g. rows should be inserted before creating foreign keys).

In general, the solution for edge-case restore selection needs is to
make a list of the dump's contents with "pg_restore -l", edit out what
you don't want using any method you like, then use the edited list with
"pg_restore -L".

While I'd be in favor of improving pg_restore to accept wild-card
patterns, I'm very hesitant to start inventing new kinds of selection
switches for it.  The interactions between such switches would be a
mess.

			regards, tom lane

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