在范围查询Elasticsearch中包含空值

from elasticsearch import Elasticsearch

# 创建一个 Elasticsearch 客户端
es = Elasticsearch()

# 创建查询对象
query = {
    "query": {
        "bool": {
            "must_not": {
                "exists": {
                    "field": "your_field_name"
                }
            }
        }
    }
}

# 执行查询
result = es.search(index="your_index_name", body=query)

# 处理查询结果
for hit in result['hits']['hits']:
    print(hit['_source'])