teledb=# select xc_node_id, * from teledb_pg1;
 xc_node_id  | id |     nickname    
-------------+----+-------------------
 -1085152094 |  5 | test
 -1085152094 |  6 | teledb, teledb1
  -506537247 |  3 | pg
(3 rows)

teledb=# select t1.xc_node_id, pgxc_node.node_name, t1.* from teledb_pg1 t1, pgxc_node where t1.xc_node_id = pgxc_node.node_id;
 xc_node_id  | node_name | id |     nickname    
-------------+-----------+----+-------------------
 -1085152094 | dn01      |  5 | test
 -1085152094 | dn01      |  6 | teledb, teledb1
  -506537247 | dn02      |  3 | pg
(3 rows)