Part of the reason we use postgres is historical - we have been running extremely large Moodle installations for a very long time(up to 5 Million users on the same platform), and in the early years, postgres was a lot better at this than MySQL ever was. MySQL has caught up a lot since those early days and now with things like AWS RDS around it's more often a decision around which hosting platform you are using. Our AU/UK teams have a lot of clients on AWS using MySQL.
Not using Stolen - in fact, I'm not even sure how streaming replication is set up currently - we're lucky to have a large skilled team of sysadmins that we just point at a "problem" and they deal to it for us!
Not using Stolen - in fact, I'm not even sure how streaming replication is set up currently - we're lucky to have a large skilled team of sysadmins that we just point at a "problem" and they deal to it for us!