这篇文章主要介绍了PostgreSQL 序列绑定字段与不绑定字段的区别说明，具有很好的参考价值，希望对大家有所帮助。一起跟随小编过来看看吧
序列绑定字段与不绑定字段的区别
绑定字段
构造数据
drop sequence if exists test_id_seq;
create sequence test_id_seq;
drop table if exists test;
create table test(id int default nextval('test_id_seq'), name text);
alter sequence test_id_seq owned by test.id;
测试
test=# drop table test;
DROP TABLE
test=# \d
Did not find any relations.
test=#
不绑定字段
构造数据
drop sequence if exists test_id_seq;
create sequence test_id_seq;
drop table if exists test;
create table test(id int default nextval('test_id_seq'), name text);
测试
test=# drop table test;
DROP TABLE
test=# \d
List of relations
Schema | Name | Type | Owner
——–+————-+———-+———-
public | test_id_seq | sequence | postgres
(1 row)
test=#
