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From: Nathan Bossart <nathandbossart@gmail.com>
To: Corey Huinker <corey.huinker@gmail.com>
Cc: Kirill Reshke <reshkekirill@gmail.com>
Cc: Chao Li <li.evan.chao@gmail.com>
Cc: pgsql-hackers@postgresql.org
Subject: Re: vacuumdb: add --dry-run
Date: Fri, 5 Dec 2025 14:47:38 -0600
Message-ID: <aTNE6gCmTwtMzomK@nathan> (raw)
In-Reply-To: <CADkLM=f99AzFrdnPdo3PkO27rYtJv5WoGQXrq9Bf8_Y4vVxuBw@mail.gmail.com>
References: <aR5IMz4cngn8hkXI@nathan>
	<CADkLM=dwBjL5fK-Dq_2qhAuHsHPab_Kt+R7KZTA9w_X0K6bENg@mail.gmail.com>
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	<CADkLM=f99AzFrdnPdo3PkO27rYtJv5WoGQXrq9Bf8_Y4vVxuBw@mail.gmail.com>

On Fri, Dec 05, 2025 at 03:34:12PM -0500, Corey Huinker wrote:
>> I guess we could probably remove the top-level "Executing in dry-run mode"
>> message, provided we say the same thing in the per-database message.
>> However, the latter can be turned off with --quiet.  Maybe we should
>> consider disallowing --quiet and --dry-run.
> 
> --quiet does appear to be the sworn enemy of "tell me what you would have
> done if you were really gonna do it". So yeah, disallowing that combination
> would make sense.

On the other hand, --quiet is handy if you're trying to save the output of
--dry-run elsewhere to run later.  (Of course, if you use --all, that
output won't be tremendously useful.)

-- 
nathan





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  Cc: nathandbossart@gmail.com, corey.huinker@gmail.com, reshkekirill@gmail.com, li.evan.chao@gmail.com
  Subject: Re: vacuumdb: add --dry-run
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