Pagila PostgreSQL database script plugin for Magic that installs the Pagila database into your "/etc/pgsql/templates/" folder for you. Notice, this plugin does not create the database for you, or execute the SQL script in any ways, since that requires a valid PgSQL connection, which we cannot determine with certainty that you actually have.
Install this module in your Magic backend, open up SQL Studio, load the pagila script, and execute it towards a valid PostgreSQL connection.