我有这张桌子：
CREATE TABLE schedule (
schedule_id serial NOT NULL,
start_date date,
CONSTRAINT schedule_id PRIMARY KEY (schedule_element_id)
)
和这张桌子：
CREATE TABLE schedule_user (
schedule_user_id serial NOT NULL,
schedule_id integer,
state int,
CONSTRAINT fk_schedule_id FOREIGN KEY (schedule_id)
REFERENCES schedule (schedule_id) MATCH SIMPLE
ON UPDATE NO ACTION ON DELETE NO ACTION
)
时间表 ------------------------- | schedule_id |日期| | ------------ + ------------ | | 1 |'2013-10-10'| | 2 |'2013-10-20'| | 3 |'2013-08-13'| ------------------------- schedule_user ----------------------------------- | schedule_user_id | schedule_id | state | | ---------------- …