version: "3"

services: 

  pgspider-fdw:

    image: dalongrong/pgspider:gzip-http-plv8

    ports: 

    - "5432:5432"

    environment: 

    - "POSTGRES_PASSWORD=dalong"

docker-compose up -d

create extension plv8;

create extension http;

// 创建数据类型

CREATE TYPE rec AS (origin text);

// 创建函数

CREATE or replace FUNCTION apps() RETURNS SETOF rec AS

$$

    var ip = plv8.execute(`select content FROM http_get('http://httpbin.org/ip')`);

    return [{"origin": JSON.parse(ip[0].content).origin}]

$$

LANGUAGE plv8;

​

// 数据查询

select * from apps();