使用JQ按键组合两个Json

Question

我有两个 json，它们是共享相同密钥的对象列表，我正在尝试使用 jq 将它们组合成一个 json。 预期的 output 是单个 json，其中包含列表形式的组合对象列表。 例如：

Json 1:

[
{"Id":"1", "FirstName":"firstName1", "LastName":"lastName1"},
{"Id":"2", "FirstName":"firstName2", "LastName":"lastName2"},
{"Id":"3", "FirstName":"firstName2", "LastName":"lastName3"}
]

Json 2：

[
{"School":"School1", "Id":"1", "Degree":"Degree1"},
{"School":"School2", "Id":"2", "Degree":"Degree2"},
{"School":"School3", "Id":"3", "Degree":"Degree3"}
]

根据id合并Json

[
{"Id":"1", "FirstName":"firstName1", "LastName":"lastName1",
"School":"School1", "Degree":"Degree1"},
{"Id":"2", "FirstName":"firstName2", "LastName":"lastName2",
"School":"School2", "Degree":"Degree2"},
{"Id":"3", "FirstName":"firstName2", "LastName":"lastName3",
"School":"School3", "Degree":"Degree3"}
]

我已经尝试了几种方法来合并我在这个线程中找到的这些 json，例如：

jq -s '.[0] * .[1]' file1 file2

我仍然是 jq 的新手，所以任何帮助将不胜感激！

Answer 1

使用SQL 风格的运算符JOIN和INDEX

jq 'JOIN(INDEX(inputs[];.Id);.[];.Id;add)' json1 json2

[
  {
    "Id": "1",
    "FirstName": "firstName1",
    "LastName": "lastName1",
    "School": "School1",
    "Degree": "Degree1"
  },
  {
    "Id": "2",
    "FirstName": "firstName2",
    "LastName": "lastName2",
    "School": "School2",
    "Degree": "Degree2"
  },
  {
    "Id": "3",
    "FirstName": "firstName2",
    "LastName": "lastName3",
    "School": "School3",
    "Degree": "Degree3"
  }
]

演示