"What are the scaling differences between MySQL and PostgreSQL?" The best advice I have is that using a different database system, particularly ones as differ

"What are the scaling differences between MySQL and PostgreSQL?" The best advice I have is that using a different database system, particularly ones as different as MySQL and PostgreSQL (which are essentially opposites) is like going to a foreign country. You'll find things you like and things that you don't like, and it will have a real impact on your quality of life, but it's hard to say in a few words the things that will really matter to you. You don't have time to live in every country in the world, but you owe it to yourself to at least visit a few that come highly recommended. Whatever you do, don't try to make the new country into your old country. You will just be disappointed. The same goes for database systems.