Foreign data wrappers in PostgreSQL

Foreign data wrappers in PostgreSQL

In 2003, a new extension called SQL/MED (“SQL Management of External Data”) was added to the SQL standard. It is a standardized way of handling access to remote objects in SQL databases. In 2011, PostgreSQL 9.1 was released with a great support of this standard.

In a nutshell, you can now use various Foreign Data Wrappers (FDW) to connect a PostgreSQL Server to remote data stores.