Postgresql List foreign data wrappers?

Question

This explains how to create a foreign data wrapper.

So how to list all the existing foreign data wrappers ?

Answer 1

Many FDWs are listed in the Postgres Wiki:

https://wiki.postgresql.org/wiki/Foreign_data_wrappers

psql has useful commands as well to know which FDWs are defined, e.g. \dew[+]:

http://www.postgresql.org/docs/current/static/app-psql.html

Answer 2

Just \det, or \det[+] for more details.

See official documentation here.