如何从JSON列中获取所有不同的属性名称？

import json

def get_distinct_attributes(json_data):
    attributes = set()

    def traverse_json(data):
        if isinstance(data, dict):
            for key, value in data.items():
                attributes.add(key)
                traverse_json(value)
        elif isinstance(data, list):
            for item in data:
                traverse_json(item)

    traverse_json(json_data)
    return list(attributes)

json_column = '[{"name": "John", "age": 30}, {"name": "Alice", "age": 25, "city": "New York"}]'
json_data = json.loads(json_column)
distinct_attributes = get_distinct_attributes(json_data)
print(distinct_attributes)

['name', 'age', 'city']