在数据表中使用uuid默认值
最近更新时间: 2024-06-12 15:06:00
postgres=# create table t_uuid(f1 uuid not null default uuid_generate_v1(),f2 varchar(256) );
CREATE TABLE
postgres=# \d+ t_uuid
Table "public.t_uuid"
Column | Type | Modifiers | Storage | Stats target | Description
--------+------------------------+-------------------------------------+----------+--------------+-------------
f1 | uuid | not null default uuid_generate_v1() | plain | |
f2 | character varying(256) | | extended | |
Has OIDs: no
Distribute By SHARD(f2)
Location Nodes: ALL DATANODES
postgres=# insert into t_uuid (f2) values(uuid_generate_v4());
INSERT 0 1
postgres=# select * from t_uuid;
f1 | f2
--------------------------------------+--------------------------------------
75dfb6b0-c382-11e7-9f82-525400efe0ca | 2b99799c-d77e-4023-81db-3e5c6ad901b0
(1 row)