Message-ID: <35e0128148572d2dadfbda0fe748dcac988d3722.camel@cybertec.at>
Subject: Re: RHEL certified repo provided PostgreSQL Major Version Upgrade.
From: Laurenz Albe <laurenz.albe@cybertec.at>
To: Sameer Malve <malvesameer@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>
Cc: "pgsql-admin@lists.postgresql.org" <pgsql-admin@lists.postgresql.org>,
 Sameer Malve <sameer.malve@mobileum.com>
Date: Thu, 10 Oct 2024 08:33:25 +0200
In-Reply-To: 
 <CAEGp0dg7cm0E3AUNhOnEGNM2TYr3KDg8iqRMpRWu16zVmaTqpQ@mail.gmail.com>
References: 
	<CAEGp0dgUL=j4ULDfGz4j=kbv2sAzP5dmp=Wem7cOknq8gyge4Q@mail.gmail.com>
	 <1910788.1728395149@sss.pgh.pa.us>
	 <PH0PR14MB520943781088094A05AA3244FD7E2@PH0PR14MB5209.namprd14.prod.outlook.com>
	 <CAEGp0dg7cm0E3AUNhOnEGNM2TYr3KDg8iqRMpRWu16zVmaTqpQ@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
User-Agent: Evolution 3.52.4 (3.52.4-1.fc40) 
MIME-Version: 1.0
Archived-At: 
 <https://www.postgresql.org/message-id/35e0128148572d2dadfbda0fe748dcac988d3722.camel%40cybertec.at>
Precedence: bulk

On Thu, 2024-10-10 at 11:52 +0530, Sameer Malve wrote:
> I have few questions.
>=20
> 1. As I have observed, the PostgreSQL upgrade package has only the lower
>    major version binaries. So what if I want to upgrade from PG 13 to PG =
16?

That works just the same.

> 2. If upgrade fails then what are the rollback steps. Do you=C2=A0know if=
 it is documented somewhere?=C2=A0

If you didn't use the --link option of pg_upgrade, you can simply fall back=
 to
the old cluster.

If you used --link, you will have to restore your backup (or promote a stan=
dby
server that you prepared for this eventuality).

See the pg_upgrade documentation.

Yours,
Laurenz Albe