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From: Tom Lane <[email protected]>
To: Adrian Klaver <[email protected]>
Cc: Ashish Mukherjee <[email protected]>
Cc: [email protected]
Subject: Re: Downgrade pgsql 17 to pgsql 12 question
Date: Fri, 26 Sep 2025 11:13:57 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <CACgMzfxO7h+Bj4T8rjTV=trM3+Uw=jOAcUE+0Kimv4DSAVU1JA@mail.gmail.com>
	<[email protected]>

Adrian Klaver <[email protected]> writes:
> On 9/26/25 05:18, Ashish Mukherjee wrote:
>> I have a strange requirement to downgrade from pgsql 17 to pgsql 12. 
>> This is because we found in production certain incompatibilities between 
>> both versions for our database. It should have been caught in testing 
>> but was not.

> What are the incompatibilities?
> Might be easier to deal with those then doing the below.

Yeah ... sitting on a PG release that's already a year beyond EOL
is not a sustainable practice.  You should consult the last several
release notes for v13 and reflect on the likelihood that most of those
bugs also exist in v12.

			regards, tom lane

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