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From: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
To: Hans Buschmann <buschmann@nidsa.net>
To: pgsql-bugs@lists.postgresql.org <pgsql-bugs@lists.postgresql.org>
Subject: Re: AW: AW: BUG #17923: Excessive warnings of collation version mismatch in logs
Date: Tue, 23 May 2023 18:18:55 +0200
Message-ID: <e55f8420-29f3-3c98-ba89-becbab6598b2@enterprisedb.com> (raw)
In-Reply-To: <ade7b17bc1b0415b80a4e1de2a822440@nidsa.net>
References: <17923-c791d260d83aa587@postgresql.org>
	<6c53254e-3e03-aa73-6007-bc67397fd507@enterprisedb.com>
	<5d3fa6cf2dd7489dba0e087e7e6a164e@nidsa.net>
	<e87a8b12-7564-cd3a-f3c1-90e2005bb4e8@enterprisedb.com>
	<ade7b17bc1b0415b80a4e1de2a822440@nidsa.net>

On 22.05.23 09:11, Hans Buschmann wrote:
> But I wonder, why this test is necessary at every autovacuum call at all?
> 
> Woudn't it be sufficient to test it at server start time only once?

The main server process (postmaster) cannot access the database 
contents.  So we can only do it when we start a session process.






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