JSON array format in MySQL not working?
Are you attempting to insert a JSON array with two objects, Test1 and Test2?

If so, then you need to insert the data as an array:

JSON array:

[{
  "Test1": {
    "Val1": "37",
    "Val2": "25"
  }
}, {
  "Test2": {
    "Val1": "25",
    "Val2": "27"
  }
}]


Your INSERT statement would look similar to the following (note the wrapping brackets around the JSON objects):

INSERT INTO zz_TEST_ObsJSON (jsonData) values ('[{"Test1":{"Val1":"37", "Val2":"25"}},{"Test2":{"Val1":"25", "Val2":"27"}}]');