dblink_disconnect
Description
  
   dblink_disconnect()
  
  closes a connection previously opened
    by
  
   dblink_connect()
  
  .  The form with no arguments closes
    an unnamed connection.
 
Return Value
Returns status, which is always OK (since any error causes the function to throw an error instead of returning).
Examples
SELECT dblink_disconnect();
 dblink_disconnect
-------------------
 OK
(1 row)
SELECT dblink_disconnect('myconn');
 dblink_disconnect
-------------------
 OK
(1 row)