On Tue, Mar 23, 2021 at 04:12:01PM +0900, Michael Paquier wrote:
> It takes some time to initialize a cluster under CLOBBER_CACHE_ALWAYS,
> but the test is quick enough to reproduce.  It would be good to bisect
> the origin point here as a first step.

One bisect later, the winner is:
commit: 3d351d916b20534f973eda760cde17d96545d4c4
author: Tom Lane <t...@sss.pgh.pa.us>
date: Sun, 30 Aug 2020 12:21:51 -0400
Redefine pg_class.reltuples to be -1 before the first VACUUM or ANALYZE.

I am too tired to poke at that today, so I'll try tomorrow.  Tom may
beat me at that though.
--
Michael

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