Thread: Replication between Master PostgreSQL database version 9.6.1 and Standby/Slave PostgreSQL database version 10.17.

> On Oct 5, 2022, at 09:32, Kaushal Shriyan <kaushalshriyan@gmail.com> wrote:
>
> Hi,
>
> Is replication possible between PostgreSQL support Master database running 9.6.1 version which is a lower version to
Standby/Slaverunning version 10.17?  

Binary replication is not possible between different major versions.  You can do logical replication, using the
pglogicalextension: 

    https://github.com/2ndQuadrant/pglogical

(Although not directly related, do note that 9.6 has been past end-of-life for nearly a year, and version 10 will reach
end-of-lifein November of this year.  10.17 is over a year old, and 9.6.1 is almost six years old; the most recent
versionsof each are 10.22 and 9.6.24.) 

> On Oct 6, 2022, at 10:20, Kaushal Shriyan <kaushalshriyan@gmail.com> wrote:
>
> I am not sure if I understand the difference between binary and logical replication between PostgreSQL Master and
Standby/Slaveserver. 

It's best to review the documentation here:

    https://www.postgresql.org/docs/10/logical-replication.html

Best,
-- Christophe