Re: VACUUM FREEZE vs plain VACUUM - Mailing list pgsql-admin

From Ron Johnson
Subject Re: VACUUM FREEZE vs plain VACUUM
Date
Msg-id CANzqJaA6SPoy7ozSH3RQfJkRF1VTVwOYPmiBqH3p3cSb51tPng@mail.gmail.com
Whole thread Raw
In response to Re: VACUUM FREEZE vs plain VACUUM  ("David G. Johnston" <david.g.johnston@gmail.com>)
Responses Re: VACUUM FREEZE vs plain VACUUM
List pgsql-admin
On Thu, Jul 17, 2025 at 6:26 PM David G. Johnston <david.g.johnston@gmail.com> wrote:
On Thursday, July 17, 2025, Ron Johnson <ronljohnsonjr@gmail.com> wrote:
Does VACUUM FREEZE do something extra or special than to defer autovacuum for an extra 50,000,000 transactions?

It effectively resets the pseudo-counter(s) that autovacuum uses to determine when next it should perform an aggressive scan.  Or, put differently, it does exactly what autovacuum would do when the pseudo-counter(s) hit their thresholds.  The act of doing that thing effectively resets said counters to zero at that moment (absent concurrent activity).
 
That seems to be what I said.  Or am I still missing something?

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

pgsql-admin by date:

Previous
From: "David G. Johnston"
Date:
Subject: Re: VACUUM FREEZE vs plain VACUUM
Next
From: Rui DeSousa
Date:
Subject: Re: VACUUM FREEZE vs plain VACUUM