Add `pagila` PostgreSQL schema

[Jolg42]

Pagila is a port of the Sakila example database available for MySQL, which was originally developed by Mike Hillyer of the MySQL AB documentation team. It is intended to provide a standard schema that can be used for examples in books, tutorials, articles, samples, etc.
Pagila works against PostgreSQL 11 and above.
All the tables, data, views, and functions have been ported; some of the changes made were:
Changed char(1) true/false fields to true boolean fields
The last_update columns were set with triggers to update them
Added foreign keys
Removed ‘DEFAULT 0’ on foreign keys since it’s pointless with real FK’s
Used PostgreSQL built-in fulltext searching for fulltext index. Removed the need for the film_text table.
The rewards_report function was ported to a simple SRF

https://github.com/devrimgunduz/pagila

[Jolg42]

Looks like it's already there 🤔

https://github.com/prisma/database-schema-examples/blob/main/postgres/sakila/schema.sql

Looks the same as https://github.com/devrimgunduz/pagila/blob/master/pagila-schema.sql but hard to tell as it's not the same file / order.

[Jolg42]

Closing then