Re: Non-text mode for pg_dumpall

From: Álvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
To: Mahendra Singh Thalor <mahi6run(at)gmail(dot)com>
Cc: Noah Misch <noah(at)leadboat(dot)com>, Andrew Dunstan <andrew(at)dunslane(dot)net>, jian he <jian(dot)universality(at)gmail(dot)com>, Srinath Reddy <srinath2133(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Non-text mode for pg_dumpall
Date: 2025-07-17 11:11:05
Message-ID: 202507171111.uo3vvgt6jp6j@alvherre.pgsql
Views: Whole Thread | Raw Message | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

On 2025-Jul-17, Mahendra Singh Thalor wrote:

> To pg_restore, we are giving a dump of pg_dumpall which has a
> global.dat file and we have drop commands in the global.dat file so
> when we are using 'globals-only', we are dropping databases as we have
> DROP commands.
> As of now, we don't have any filter for global.dat file in restore. If
> a user wants to restore only globals(without droping db), then they
> should use 'globals-only' in pg_dumpall.
> Or if we don't want to DROP databases by global.dat file, then we
> should add a filter in pg_restore (hard to implement as we have SQL
> commands in global.dat file).

I think dropping database is dangerous and makes no practical sense;
doing it renders pg_dumpall --clean completely unusable. You're arguing
from the point of view of ease of implementation, but that doesn't help
users.

> I think, for this case, we can do some
> more doc changes.
> Example: pg_restore --globals-only : this will restore the global.dat
> file(including all drop commands). It might drop databases if any drop
> commands.

I don't think doc changes are useful.

--
Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/
"I love the Postgres community. It's all about doing things _properly_. :-)"
(David Garamond)

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message shveta malik 2025-07-17 11:14:11 Re: Conflict detection for update_deleted in logical replication
Previous Message Greg Hennessy 2025-07-17 10:45:32 Re: simple patch for discussion