I need to add the following fields to all tables to existing 8.1 database: created timestamp without time zone DEFAULT CURRENT_TIMESTAMP NOT NULL, createdby text DEFAULT CURRENT_USER, updated timestamp without time zone DEFAULT CURRENT_TIMESTAMP NOT NULL, updatedby text -- current_user who last updates this record I need also to add triggers so that updated and updatedby fields ae automatically set when record is changed. Where to find script which implements this ? Andrus.