Universally Unique IDs (UUIDs) use random numbers to create unique IDs. UUIDs use more storage, but they provide a good solution for distributed databases and security.
PostgreSQL has several extensions so spatial and geometry data can be treated as first-class objects within your PostgreSQL database.
PostgreSQL is an ORDBMS, or an Object-Relational Database Management System. This means that, similar to Object-Oriented programming languages, objects, classes, and inheritance are supported by PostgreSQL.
While MySQL and PostgreSQL have many things in common, you should make sure you understand the differences between them in order to make sure you select the right one for your specific application.
