What is the difference between Postgre SQL and Postgre Pro?

Question

PostgreSQL

What is the difference between these DBMS?

1) https://www.postgresql.org/

2) https://postgrespro.com/

As I understand it, these sites host the Russian DBMS https://postgrespro.com/
https://postgrespro.ru/

A this is the US version:
https://www.postgresql.org/

Is that correct?

Answer 1

PostgreSQL is a vanilla open source version.
Postgre Pro - sort of the same, labeled by 'Postgres Professional'.
The topic is not very deep, but the differences are at least as follows:

• There is functionality that is missing in the vanilla version
  
• Support is provided, according to all relying SLA
  
• Included in the register of domestic software
  
• There is a FSTEC-certified version
  

Some people think that Postgres Professional just sells open source software under its own brand, but as far as I know, this is not true - they really have their own developments, they actively contribute to open source PG and promote it in every possible way.

Answer 2

These are two different DBMS.
postgres pro is a local closed fork of the free postgresql.

Answer 3

If you are interested in functional differences - https://postgrespro.ru/docs/postgrespro/14/intro-p...
Well, Postgres Pro is not free:
https://postgrespro.ru/products/postgrespro/certified
https:/ /www.syssoft.ru/postgres-professional/postg...