
  SELECT EXISTS (
    SELECT 1
    FROM pg_catalog.pg_foreign_server srv
    INNER JOIN pg_catalog.pg_foreign_data_wrapper fdw ON (fdw.oid = srvfdw)
    WHERE srv.oid = $1
    AND (fdw.fdwname LIKE '%_dblink' OR fdw.fdwname = 'postgres_fdw')
    AND srvname ~ '_priv[[:digit:]]+$'
  );
