PostgreSQL performance increases with each release, this is also proven by many benchmark tests. Notable performance features include: As PostgreSQL only supports one storage engine, it has been able to integrate and optimise it and with the rest of the database. This has resulted in multiple
Mysql has always been faster than Postgres but when the creators of MySQL sold it to Oracle and then continued development on a fork called MariaDB, they surpassed Oracle who didn't maintain MySQL for over a year and improved it well beyond what Oracle currently has done.
Because of it's popularity there are a lot of tutorials and guides out there that help developers install and work with MySQL. The installation process itself is not very hard and there are multiple powerful GUI tools that make it extremely easy to work with MySQL for a beginner.
When you are trying to do something in MySQL and something goes wrong it will simply give you an error message with an error code. WHich does not say much about what went wrong unless you look it up online. This can be a little cumbersome during development.