opening a channel between two postgreSQL-servers?

Hi.
a handy thing in mysql is FEDERATED tables that allows one to open a channel from one MySQL-server to another
MySQL-server.
it helps a lot when writing stored procedures that transfer data to other servers. you can do the transfer without
any extarnal temporary files or external applications that read from one server and insert into another server.

Does PG have anything similar?
if yes, which chapter in the docs for 8.1 will tell me more?
no wars please. i just want to know if such a possibility exists in PG.

/stig