Guidance Needed for PostgreSQL Upgrade from 12 to 15

From: Motog Plus <mplus7535(at)gmail(dot)com>
To: pgsql-admin(at)lists(dot)postgresql(dot)org
Subject: Guidance Needed for PostgreSQL Upgrade from 12 to 15
Date: 2024-11-18 16:08:31
Message-ID: CAL5GnisA0RJ=Rd5e6yw4nsCB+DtAS1=iquBKTH76MknnTsHrPg@mail.gmail.com
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Dear Team,

We are in the process of upgrading our PostgreSQL database from version 12
to version 15. I would greatly appreciate your advice on the following:

1. Would it be recommended to use the --link option with the pg_upgrade
command, from disk space point of view? Are there any potential downsides
to consider?

2. Do you have any suggestions or best practices for performing an
efficient upgrade in a replication setup (streaming replication) for both
the primary and standby servers?

Thank you in advance for your insights and guidance.

Best regards,
Raman

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