Aiven for PostgreSQL® tutorial

The text provides a comprehensive tutorial on setting up and running Aiven for PostgreSQL, a fully managed database service. It covers the platform's web console, sign-up process, creating your first database, high-availability features, online upgrades and migration between clouds, SQL statistics, automatic real-time backups, restricting access to the database, billing and project members. The tutorial also includes information on Aiven's performance across different cloud platforms like AWS, GCP, and Azure.