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From: Andreas Karlsson <[email protected]>
To: Matthias van de Meent <[email protected]>
To: PostgreSQL Hackers <[email protected]>
Subject: Re: Online PostgreSQL version() updates
Date: Wed, 1 Apr 2026 16:38:22 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <CAEze2WjgxD-uZrjiD7Gtp2gy=ztAOTU+xyLNJg6saYG4erP_=w@mail.gmail.com>
	<[email protected]>

On 4/1/26 1:35 PM, Andreas Karlsson wrote:
> On 4/1/26 12:48 PM, Matthias van de Meent wrote:
>> Attached is a patch that allows superusers to update the version() of
>> their running system with a simple SQL call: SELECT
>> pg_update_version(version_num, 'version_short', 'the full version()
>> outout'). Running backends will automatically get updated without
>> impacting their active workloads, and new backends will immediately
>> notice the new version().
> 
> Thanks for the patch!
> 
> Some small quibbles:

Another thing: What should the return value be? Right now 
pgsql_update_version() returns the new value for version_short, but that 
feels not that useful and pretty arbitrary. Maybe we should simply have 
it return void?

-- 
Andreas Karlsson
Percona

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