PostgreSQL is an all round impressive Relational DataBase Management System which implements the SQL standard (see the very useful reference page Comparison of different SQL implementations for details). PostgreSQL also provides with unique solutions in the database market and has been leading innovation for some years now. Still, there's no support for Autonomous Transactions within the server itself. Let's have a look at how to easily implement them with PL/Proxy.
In the news recently stored procedures where used as an excuse for moving away logic from the database layer to application layer, and to migrate away from a powerful technology to a simpler one, now that there's no logic anymore in the database.