Re: vacuumdb: add --dry-run

Nathan Bossart <nathandbossart@gmail.com>

From: Nathan Bossart <nathandbossart@gmail.com>

To: Corey Huinker <corey.huinker@gmail.com>

Cc: Chao Li <li.evan.chao@gmail.com>, pgsql-hackers@postgresql.org

Date: 2025-11-20T21:46:42Z

Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

Add ParallelSlotSetIdle().
- 750816971b35 19 (unreleased) landed
vacuumdb: Add --dry-run.
- d107176d27c7 19 (unreleased) landed
vacuumdb: Move some variables to the vacuumingOptions struct.
- cf1450e57799 19 (unreleased) landed
Log a note at program start when running in dry-run mode
- c05dee191125 19 (unreleased) cited

Attachments

v4-0001-Add-ParallelSlotSetIdle.patch (text/plain)

On Wed, Nov 19, 2025 at 07:54:06PM -0500, Corey Huinker wrote:
> Here's a shopping list of incremental changes. I'm happy with whatever
> makes the most sense to you.

Here is a v4 patch set.  I've made a variety of small changes.  I think
there's some room to bike-shed on the messages we send to the user to
assure them we're not actually doing anything, but this is roughly what I
imagined.

-- 
nathan