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From: Tom Lane <[email protected]>
To: Mark Dilger <[email protected]>
Cc: Robert Haas <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Cc: Andrew Dunstan <[email protected]>
Subject: Re: Granting SET and ALTER SYSTE privileges for GUCs
Date: Tue, 16 Nov 2021 10:32:07 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<CA+TgmobaKUYZhfXs-7kHjsmDmkcttH7-r9E2BJXUHtv9mkUUcw@mail.gmail.com>
	<[email protected]>

Mark Dilger <[email protected]> writes:
> I don't think we support using a .so that is mismatched against the
> version of the extension that is installed.

You are entirely mistaken.  That's not only "supported", it's *required*.
Consider binary upgrades, where the SQL objects are transferred as-is
but the receiving installation may have a different (hopefully newer)
version of the .so.  That .so has to cope with the older SQL object
definitions; it doesn't get to assume that the upgrade script has been
run yet.

			regards, tom lane

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