Postgresql 大象数据库long自定义自增

Postgresql 

--创建序列
CREATE SEQUENCE user_long_id_seq START 100000; 
CREATE SEQUENCE departments_long_id_seq START 100000; CREATE SEQUENCE positions_long_id_seq START 100000; 
CREATE SEQUENCE position_grades_long_id_seq START 100000;

--设置对应列Key值
ALTER TABLE users ALTER "id" SET DEFAULT nextval('user_long_id_seq'); 
ALTER TABLE departments ALTER "id" SET DEFAULT nextval('departments_long_id_seq'); 
ALTER TABLE positions ALTER "id" SET DEFAULT nextval('positions_long_id_seq'); 
ALTER TABLE position_grades ALTER "id" SET DEFAULT nextval('position_grades_long_id_seq'); 

--更新序列
ALTER SEQUENCE user_long_id_seq RESTART WITH 10000

--删除序列
DROP SEQUENCE user_long_id_seq

--查询序列
select * from "user_long_id_seq"