sql - 复合类型的多个插入

Question

考虑以下模式

CREATE TYPE episode_id AS
(
    season_nr int,
    episode_nr int,
    show_id bigint
);

CREATE TABLE episodes
(
    id episode_id primary key,
    title varchar(255) not null,
    release_date timestamptz null
);

I want to insert to multiple rows in one query;

insert into episodes (id.season_nr, id.episode_nr, id.show_id, title, release_date)
values 
(1, 1, 58811, 'Pilot', null),
(1, 2, 58811, 'Vector', null),
(1, 3, 58811, '274', null),
(1, 4, 58811, 'Single Strand', null),
(1, 5, 58811, 'The White Room', null);

它抛出:

> ERROR: multiple assignments to same column "id" SQL state: 42601

我的客户端库不支持 ROW 语法。我怎样才能做到这一点？

Answer 1

正确的语法:

INSERT INTO episodes (id, title, release_date)
VALUES 
((1, 1, 58811), 'Pilot', null),
((1, 2, 58811), 'Vector', null);

您不能在 INSERT 语句的列列表中引用 id 的单个属性，只能引用整个 列。

添加的括号使三个值成为行类型/复合类型。