Godot PostgreSQL Client is a GDscript script / class that allows you to connect to a Postgres backend and run SQL commands there. It is able to send data and receive it from the backend. Useful for managing player user data on a multiplayer game, by saving a large amount of data on a dedicated Postgres server from GDscript.
The class is written in pure GDScript which allows it not to depend on GDNative. This makes it ultra portable for many platforms.
Detailed documentation: https://github.com/Marzin-bot/PostgreSQLClient/wiki/Documentation