The clock changes are not due to DST, but the UTC system time. There was an NTP server on an offline network that went
from2019 to 2006 due to GPS week number rollover. The date being wrong did cause some problems, but nothing fatal, but
severalmachines filled up their disk to the point of failure because autovacuum was no longer running.
I will attempt to attach the patch again.
________________________________________
From: Michael Paquier <michael@paquier.xyz>
Sent: Tuesday, March 24, 2026 18:55
To: Cliff Clark <Cliff_Clark@selinc.com>
Cc: pgsql-hackers@lists.postgresql.org <pgsql-hackers@lists.postgresql.org>
Subject: Re: [PATCH] Auto vacuum should still run when clock is set back
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