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postgres=# select * from cell_000.public.zipcode limit 5;
ERROR: cross-database references are not implemented: "cell_000.public.zipcode"
LINE 1: select * from cell_000.public.zipcode limit 5;
postgres=# CREATE EXTENSION postgres_fdw;
ERROR: could not open extension control file "/psql/13.4/share/postgresql/extension/postgres_fdw.control": No such file or directory
postgres=# CREATE SERVER cell_000
FOREIGN DATA WRAPPER postgres_fdw
OPTIONS (host 'localhost', port '5413', dbname 'cell_000');
ERROR: foreign-data wrapper "postgres_fdw" does not exist