postgresql jsonb查询问题

Question

1.基于pg 9.4，有如下表，data是jsonb类型。

,基于如下的官方文档，我想要在data字段里再插入一个key，value：

执行如下sql语句:

UPDATE users
SET DATA = jsonb_set (DATA, '{Age}', '"30"', TRUE)
WHERE
    ID = 1;

为什么报错:

[Err] ERROR:  function jsonb_set(jsonb, unknown, unknown, boolean) does not exist
LINE 2: SET DATA = jsonb_set (DATA, '{Age}', '"30"', TRUE)
                   ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.

希望大神解答一下，thanks

sql语句分别是:

CREATE TABLE users (
    id   serial PRIMARY KEY,
    data jsonb
);

INSERT INTO "public"."users" VALUES ('1', '{"Address": {"City": "Skopje", "Country": "Macedonia"}, "LastName": "Doe", "FirstName": "John"}');

UPDATE users
SET DATA = jsonb_set (DATA, '{Age}', '"30"', TRUE)
WHERE
    ID = 1;

Answer 1

https://www.postgresql.org/do...
9.4没有jsonb_set
https://www.postgresql.org/do...
9.5才有