PostgreSQL: Foreign Table

• Create extension

  CREATE EXTENSION postgres_fdw;
  

• Create server

  CREATE SERVER server_name FOREIGN DATA WRAPPER postgres_fdw options(host 'host_addr', port '5432', dbname 'db_name');
  

• Create user mapping

  CREATE USER MAPPING FOR postgres SERVER server_name options(user 'username',password 'password');
  

• Import remote schema

  IMPORT FOREIGN SCHEMA schema_name LIMIT TO (table1,table2,...) FROM SERVER server_name INTO destination_schema;
  

  \dx list the installed extensions
  \des List the foreign servers
  \deu+ List the user mappings
  

• Drop

  DROP FOREIGN TABLE table_name;
  DROP USER MAPPING FOR user_name SERVER server_name;
  DROP SERVER server_name;