 CREATE VIEW view_peers AS
 SELECT 
 peers.*, 
-peer_sites.site_ids,
-peer_persons.person_ids,
-peer_nodes.node_ids,
-peer_slices.slice_ids
+COALESCE(peer_sites.site_ids, '{}') AS site_ids,
+COALESCE(peer_persons.person_ids, '{}') AS person_ids,
+COALESCE(peer_keys.key_ids, '{}') AS key_ids,
+COALESCE(peer_nodes.node_ids, '{}') AS node_ids,
+COALESCE(peer_slice_attribute_types.attribute_type_ids, '{}') AS attribute_type_ids,
+COALESCE(peer_slice_attributes.slice_attribute_ids, '{}') AS slice_attribute_ids,
+COALESCE(peer_slices.slice_ids, '{}') AS slice_ids
 FROM peers
 LEFT JOIN peer_sites USING (peer_id)
 LEFT JOIN peer_persons USING (peer_id)
+LEFT JOIN peer_keys USING (peer_id)
 LEFT JOIN peer_nodes USING (peer_id)
+LEFT JOIN peer_slice_attribute_types USING (peer_id)
+LEFT JOIN peer_slice_attributes USING (peer_id)
 LEFT JOIN peer_slices USING (peer_id);
 
 CREATE VIEW view_nodes AS

--
-- Copyright (C) 2006 The Trustees of Princeton University
--
-- $Id: planetlab4.sql,v 1.53 2006/12/12 10:58:58 thierry Exp $
--

--------------------------------------------------------------------------------

FROM persons
GROUP BY peer_id;

CREATE VIEW peer_keys AS
SELECT peer_id,
array_accum(key_id) AS key_ids
FROM keys
GROUP BY peer_id;

CREATE VIEW peer_nodes AS
SELECT peer_id,
array_accum(node_id) AS node_ids
FROM nodes
GROUP BY peer_id;

CREATE VIEW peer_slice_attribute_types AS
SELECT peer_id,
array_accum(attribute_type_id) AS attribute_type_ids
FROM slice_attribute_types
GROUP BY peer_id;

CREATE VIEW peer_slice_attributes AS
SELECT peer_id,
array_accum(slice_attribute_id) AS slice_attribute_ids
FROM slice_attribute
GROUP BY peer_id;

CREATE VIEW peer_slices AS
SELECT peer_id,
array_accum(slice_id) AS slice_ids
