- modified events_table (allow person_id to be null)

diff --git a/planetlab4.sql b/planetlab4.sql
index 9ff0b62..8280a20 100644 (file)
--- a/planetlab4.sql
+++ b/planetlab4.sql
@@ -9,7 +9,7 @@
 --
 -- Copyright (C) 2006 The Trustees of Princeton University
 --
--- $Id: planetlab4.sql,v 1.14 2006/10/18 19:41:11 tmack Exp $
+-- $Id: planetlab4.sql,v 1.15 2006/10/18 20:54:28 tmack Exp $
 --
 
 --------------------------------------------------------------------------------
@@ -569,7 +569,7 @@ INSERT INTO object_types (object_type) VALUES ('Unknown');
 -- events
 CREATE TABLE events (
        event_id serial PRIMARY KEY,  -- Event identifier
-       person_id integer REFERENCES persons NOT NULL, -- person responsible for event
+       person_id integer REFERENCES persons, -- person responsible for event
        event_type text REFERENCES  event_types NOT NULL DEFAULT 'Unknown', -- Event type 
        object_type text REFERENCES object_types NOT NULL DEFAULT 'Unknown', -- Object type associated with event
        fault_code integer NOT NULL DEFAULT 0, -- did this event result in error