How GraphQL returns a custom json

Question

Test table has some field,

Test{
    baike_url,
    baike_content
}

i use this to test GraphQL

fragment Baike on Test{
    baike_causes
}
query MyQuery {
    Test(limit: 10) {
        ..Baike
    }
}

but is error,i want return this data

{
  "data": {
    "Test": [
      {
        "baike": {
           "baike_url":baike_url
         }
      },
      {
        "baike": {
           "baike_url":baike_url
         }
      }
    ]
  }
}

I tried many ways, but still can't solve it