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From: Adrian Klaver <[email protected]>
To: Asad Ali <[email protected]>
Cc: Durgamahesh Manne <[email protected]>
Cc: pgsql-general <[email protected]>
Cc: PostgreSQL mailing lists <[email protected]>
Subject: Re: Pgsql 16 to 14 using builtin logical
Date: Sat, 26 Oct 2024 10:51:21 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAJ9xe=v3QX-Q4vmKYfos_UG75BD9j_Q_ekAu5G501o+Niy6fkA@mail.gmail.com>
References: <CAJCZko+aaFkt8C+oXQFZYBUCD4f_gkAroaE1ZQemtdqNr+W=xQ@mail.gmail.com>
	<CAJ9xe=sLOZQ26JF==dNwmhh0LSkLgwMhsxXAH2e1J1CqkyHaBw@mail.gmail.com>
	<[email protected]>
	<CAJ9xe=v3QX-Q4vmKYfos_UG75BD9j_Q_ekAu5G501o+Niy6fkA@mail.gmail.com>

On 10/26/24 10:06, Asad Ali wrote:
> 
> In the typical upgrade scenario, replication flows from the lower 
> (older) version to the higher (newer) version. Here, the source is the 
> older version (e.g., PostgreSQL 14), and the target is the newer version 
> (e.g., PostgreSQL 16).

So how does that fit with your statement?:

"PostgreSQL's built-in logical replication allows for replicating data 
between different versions of PostgreSQL, provided the source version is 
higher than or equal to the target version."

> 
> Replicating from a higher version (PostgreSQL 16) to a lower one 
> (PostgreSQL 14) is possible but unconventional and not usually done for 
> upgrades.
> 
> 
> Best Regards,
> Asad Ali
> 

-- 
Adrian Klaver
[email protected]

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