postgresql7.1 select distinct h.community_key, h.community_id, h.pretty_name, h.parent_community_id from dotlrn_communities h, dotlrn_clubs c where h.parent_community_id is not null or c.club_id = h.community_id order by h.pretty_name select dotlrn_communities_full.community_key, dotlrn_communities_full.community_id, dotlrn_communities_full.pretty_name from dotlrn_classes, dotlrn_communities_full where dotlrn_communities_full.community_type = dotlrn_classes.class_key order by dotlrn_communities_full.pretty_name select dotlrn_communities.community_key, dotlrn_communities.community_id, dotlrn_communities.pretty_name from dotlrn_communities order by dotlrn_communities.pretty_name