Postgresql：如何查询包含一些值的JSONb数组

Question

我有这张桌子：

CREATE TABLE lawyer (
  id SERIAL PRIMARY KEY,
  data jsonb
);

INSERT INTO lawyer (data) VALUES
    ('{"a": 1}'),
    ('{"tags":["derecho", "civil", "laboral", "penal"]}'),
    ('{"tags":["derecho", "penal"]}')
;

我想要的是postgres中的JSONb查询，当我需要找到包含＆＃34; civil＆＃34; OR＆＃34; derecho＆＃34;

Answer 1

终于找到了一种方法：

将json数组直接存储为顶级：

INSERT INTO lawyer (data) VALUES
    ('["derecho","laboral","penal"]'),
    ('["derecho", "civil", "laboral", "penal"]'),
    ('["derecho", "penal"]')
;

SELECT * 
FROM lawyer 
WHERE data ? 'penal';

结果：

Answer 2

对于那些寻找原始数据结构答案的人来说，这里是SQL：

SELECT * FROM lawyer WHERE lawyer.data->'tags' ? 'penal'