如何将json数组放在hive中的一行中，而不是尝试分解

CREATE TABLE my_table (
  json_data STRING
) STORED AS TEXTFILE;

INSERT INTO my_table VALUES ('[{"key1": "value1", "key2": "value2"}, {"key3": "value3", "key4": "value4"}]');

SELECT get_json_object(json_data, '$[0].key1') AS key1,
       get_json_object(json_data, '$[0].key2') AS key2,
       get_json_object(json_data, '$[1].key3') AS key3,
       get_json_object(json_data, '$[1].key4') AS key4
FROM my_table;