CREATE TABLE {relativity} (
	nid integer NOT NULL DEFAULT 0, 
  parent_nid integer NOT NULL DEFAULT 0,
  CONSTRAINT pk_relativity PRIMARY KEY (nid, parent_nid)
) WITHOUT OIDS;");
				
CREATE TABLE test_relativity_query (
	nid integer NOT NULL DEFAULT 0, 
  target_nid integer, 
  follow_parents integer, 
  follow_children integer, 
  recursion_depth integer, 
  unique_types integer, 
  max_results integer, 
  options text, 
  search_algorithm character varying(20) DEFAULT 'dfs', 
  search_types text, 
  end_pts text, 
  avoid_pts text, 
  CONSTRAINT pk_relativity_query PRIMARY KEY (nid)
) WITHOUT OIDS;");