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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Amit Kapila <amit.kapila16@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: pgsql: Prevent invalidation of newly synced replication slots.
Date: Tue, 27 Jan 2026 11:11:08 -0500
Message-ID: <547219.1769530268@sss.pgh.pa.us> (raw)
In-Reply-To: <CA+TgmoYvtJoU0eyw3XEmLLda_JV4qSJxJpVfoTtFL3uPs5+7vw@mail.gmail.com>
References: <E1vkc3p-002uNr-0e@gemulon.postgresql.org>
	<CA+TgmobdVhO0ckZfsBZ0wqDO4qHVCwZZx8sf=EinafvUam-dsQ@mail.gmail.com>
	<428236.1769526672@sss.pgh.pa.us>
	<CA+TgmoYvtJoU0eyw3XEmLLda_JV4qSJxJpVfoTtFL3uPs5+7vw@mail.gmail.com>

Robert Haas <robertmhaas@gmail.com> writes:
> What's also puzzling is that what this test is doing seems to be
> totally standard.

Yeah.  I do notice something interesting when running it here:
046_checkpoint_logical_slot_mike.log shows that we are triggering
quite a few checkpoints (via pg_switch_wal()) in quick succession
on the primary.  I wonder if that is somehow tickling a Windows
filesystem restriction.

			regards, tom lane





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