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From: Mark Dilger <hornschnorter@gmail.com>
To: David Fetter <david@fetter.org>
Cc: PostgreSQL Development <pgsql-hackers@postgresql.org>
Cc: Christophe Pettus <xof@thebuild.com>
Subject: Re: Make autovacuum sort tables in descending order of xid_age
Date: Thu, 12 Dec 2019 14:30:47 -0800
Message-ID: <7f72ef60-b2a1-4a9f-b3f5-b6e1d4f85df1@gmail.com> (raw)
In-Reply-To: <2ad2a9fa-32eb-29aa-07ee-f0fe75ad4db5@gmail.com>
References: <20191129180138.GD8731@fetter.org>
	<20191129222152.GE8731@fetter.org>
	<2488acea-328b-1328-d437-8c156bc8f7a4@gmail.com>
	<20191130222314.GF8731@fetter.org>
	<877ac074-e95d-bdee-09e7-c51f0ee0fde2@gmail.com>
	<20191212192631.GA29201@fetter.org>
	<2ad2a9fa-32eb-29aa-07ee-f0fe75ad4db5@gmail.com>



On 12/12/19 1:35 PM, Mark Dilger wrote:
> Once the xid age reaches one
> million, it will start to be the dominant factor.

Actually, it doesn't change much from x = 1 to x = 1,000,000
but I was planning to add another factor to the formula and
forgot before sending the email.  I'll leave that as an
exercise for the reader.

-- 
Mark Dilger





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