Postgres 12 中的列表分区

Question

CREATE TABLE countrymeasurements
(
  countrycode int NOT NULL,
  countryname character varying(30) NOT NULL,
  languagename character varying (30) NOT NULL,
  daysofoperation character varying(30) NOT NULL,
  salesparts    bigint,
  replaceparts  bigint
)
 PARTITION BY LIST(countrycode)
 (
  partition india values(1),
  partition japan values(2),
  partition china values(3),
  partition malaysia values(4)
  );

我收到错误：“(”处或附近的语法错误。我在这里缺少什么。我正在使用 postgres12

Answer 1

我不知道您在哪里找到该语法，显然手册中没有。如您所见，create table .. as partition of在 Postgres 中使用创建了分区：

定义表：

CREATE TABLE countrymeasurements
(
  countrycode int NOT NULL,
  countryname character varying(30) NOT NULL,
  languagename character varying (30) NOT NULL,
  daysofoperation character varying(30) NOT NULL,
  salesparts    bigint,
  replaceparts  bigint
)
PARTITION BY LIST(countrycode);

定义分区：

create table india 
  partition of countrymeasurements 
  for values in (1);
  
create table japan
  partition of countrymeasurements 
  for values in (2);
  
create table china
  partition of countrymeasurements 
  for values in (3);

create table malaysia
  partition of countrymeasurements 
  for values in (4);