CREATE SEQUENCE system_event_pk_seq START WITH 1 INCREMENT BY 1 MAXVALUE 2147483647 NO MINVALUE CACHE 1; CREATE TABLE system_event ( id integer DEFAULT nextval('system_event_pk_seq'::text) NOT NULL, type character varying(16), parameters text, priority integer DEFAULT 0 NOT NULL, status integer DEFAULT 1 NOT NULL, log text, create_date integer DEFAULT 0, process_date integer DEFAULT 0, end_date integer DEFAULT 0 );