PostgreSQL表分区

--Range范围分区

CREATE TABLE pkslow_person_r (
    age int not null,
    city varchar not null
) PARTITION BY RANGE (age);

create table pkslow_person_r1 partition of pkslow_person_r for values from (MINVALUE) to (10);
create table pkslow_person_r2 partition of pkslow_person_r for values from (11) to (20);
create table pkslow_person_r3 partition of pkslow_person_r for values from (21) to (30);
create table pkslow_person_r4 partition of pkslow_person_r for values from (31) to (MAXVALUE);


insert into pkslow_person_r(age, city) VALUES (1, 'GZ');
insert into pkslow_person_r(age, city) VALUES (2, 'SZ');
insert into pkslow_person_r(age, city) VALUES (21, 'SZ');
insert into pkslow_person_r(age, city) VALUES (13, 'BJ');
insert into pkslow_person_r(age, city) VALUES (43, 'SH');
insert into pkslow_person_r(age, city) VALUES (28, 'HK');

\d+ pkslow_person_r

select * from pkslow_person_r;
select * from pkslow_person_r3;

List列表分区

-- 创建主表
create table pkslow_person_l (  age int not null,  city varchar not null
) partition by list (city);

-- 创建分区表
CREATE TABLE pkslow_person_l1 PARTITION OF pkslow_person_l FOR VALUES IN ('GZ');
CREATE TABLE pkslow_person_l2 PARTITION OF pkslow_person_l FOR VALUES IN ('BJ');
CREATE TABLE pkslow_person_l3 PARTITION OF pkslow_person_l DEFAULT;

-- 插入测试数据
insert into pkslow_person_l(age, city) VALUES (1, 'GZ');
insert into pkslow_person_l(age, city) VALUES (2, 'SZ');
insert into pkslow_person_l(age, city) VALUES (21, 'SZ');
insert into pkslow_person_l(age, city) VALUES (13, 'BJ');
insert into pkslow_person_l(age, city) VALUES (43, 'SH');
insert into pkslow_person_l(age, city) VALUES (28, 'HK');
insert into pkslow_person_l(age, city) VALUES (28, 'GZ');

\d+ pkslow_person_l
select * from pkslow_person_l1;

Hash哈希分区

-- 创建主表
create table pkslow_person_h (  age int not null,  city varchar not null) partition by hash (city);
-- 创建分区表
create table pkslow_person_h1 partition of pkslow_person_h for values with (modulus 4, remainder 0);
create table pkslow_person_h2 partition of pkslow_person_h for values with (modulus 4, remainder 1);
create table pkslow_person_h3 partition of pkslow_person_h for values with (modulus 4, remainder 2);
create table pkslow_person_h4 partition of pkslow_person_h for values with (modulus 4, remainder 3);
-- 插入测试数据
insert into pkslow_person_h(age, city) VALUES (1, 'GZ');
insert into pkslow_person_h(age, city) VALUES (2, 'SZ');
insert into pkslow_person_h(age, city) VALUES (21, 'SZ');
insert into pkslow_person_h(age, city) VALUES (13, 'BJ');
insert into pkslow_person_h(age, city) VALUES (43, 'SH');
insert into pkslow_person_h(age, city) VALUES (28, 'HK');

\d+ pkslow_person_h
select * from pkslow_person_h4;

[PostgreSQL表分区 - 高&玉 - 博客园 (cnblogs.com)](https://www.cnblogs.com/haha029/p/15718827.html)

[关于分区表的方方面面 (qq.com)](https://mp.weixin.qq.com/s/4HFnzS_4MK1moa-9oxdARQ)