Postgres data integration
Try the dblink. You find the description in http://www.postgresql.org/docs/current/static/contrib-dblink-function.html and http://www.postgresonline.com/journal/archives/44-Using-DbLink-to-access-other-PostgreSQL-Databases-and-Servers.html. Also a question about dblink was asked on https://stackoverflow.com/questions/3862648/how-to-use-install-dblink-in-postgresql.