Re: Upgrade from 12.22 to 16 - Mailing list pgsql-admin

Can you help out 

DAVID OKEAMAH,DEVELOPER 

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From: Gaspare Boscarino, P.Eng. <gaspare.boscarino@theoremasystems.com>
Sent: Monday, June 16, 2025 7:10:22 PM
To: DINESH NAIR <Dinesh_Nair@iitmpravartak.net>
Cc: Wasim Devale <wasimd60@gmail.com>; Ron Johnson <ronljohnsonjr@gmail.com>; pgsql-admin <pgsql-admin@postgresql.org>; Pgsql-admin <pgsql-admin@lists.postgresql.org>
Subject: Re: Upgrade from 12.22 to 16

 

Hello Wasim,

I suggest the logical replication approach. As mentioned before in this thread, there are some limitations like DDL propagation, the need for primary keys, etc. However, those constraints are not problematic and if planned properly the result is excellent. I have used logical replication many times for databases with TB of data. 

Thank you.

Regards,

Gaspare

On Sun, Jun 15, 2025 at 9:43 PM DINESH NAIR <Dinesh_Nair@iitmpravartak.net> wrote:

Hope this  below  mentionsed on the restrictions  to be useful on the database schema and DDL commands are not replicated 

https://www.postgresql.org/docs/current/logical-replication-restrictions.html

PostgreSQL: Documentation: 17: 29.7. Restrictions 29.7. Restrictions # Logical replication currently has the following restrictions or missing functionality. These might be addressed in future releases. The … www.postgresql.org

Another useful link on  enabling replication

https://dev.to/raselmahmuddev/how-to-set-up-postgresql-logical-replication-use-cases-and-step-by-step-guide-536b

How to Set Up PostgreSQL Logical Replication: Use Cases and Step-by-Step Guide. Real-World Use Case 2: E-commerce Platforms Use Case: An e-commerce platform uses logical replication to keep the data in sync between the main database (handling customer transactions) and a separate reporting database (used for analytics).This ensures that the system can generate real-time reports and insights without affecting the performance of the website or app. dev.to

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From: Wasim Devale <wasimd60@gmail.com>
Sent: Saturday, June 14, 2025 8:23 PM
To: Ron Johnson <ronljohnsonjr@gmail.com>
Cc: pgsql-admin <pgsql-admin@postgresql.org>; Pgsql-admin <pgsql-admin@lists.postgresql.org>
Subject: Re: Upgrade from 12.22 to 16

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Thanks everyone.

Is there the restriction in logical replication because the database we have has all of it shown in the screenshot.

On Wed, 11 Jun, 2025, 8:59 pm Ron Johnson, <ronljohnsonjr@gmail.com> wrote:

On Wed, Jun 11, 2025 at 2:57 AM Domen Šetar <domen.setar@izum.si> wrote:

You can use logical replication if new version of your postgres is on other host.

Are you sure?  There _shouldn't_ be any problem with replicating to a new instance on the same machine.

 

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Gaspare Boscarino, P.Eng., M.Eng., MASc.

Founder and CEO

Theorema Systems Inc.

www.theoremasystems.com | +1 604-765-0121