contrib/udfs/src/test/resources/json/nestedSchema.json

{
  "record" : {
    "int_field": 1,
    "double_field": 2.0,
    "string_field": "My string",
    "boolean_field": true,
    "int_list": [1,2,3],
    "double_list": [1.0,2.0,3.0],
    "boolean_list": [true, false, true],
    "map": {
      "nested_int_field" : 5,
      "nested_double_field": 5.0,
      "nested_string_field": "5.0"
    },
    "repeated_map": [
      { "a" : 1 },
      { "b" : "abc" }
    ]
  },
  "single_field": 10
}