MySQL / postgreSQL / mariaDB

Question

what's the main difference between MySQL , postgreSQL and mariaDB and what are the real pros of each ? (maybe someone uses it)

Answer 1

technical differences here

https://db-engines.com/en/system/MariaDB%3BMySQL%3BPostgreSQL

can't answer on a personal note as out of the three i have only worked a bit with MySQL and have no basis for comparison between them ;_;