我发送了这个查询，它运行良好，返回了经过筛选的数据：

{
    "query": {
        "bool": {
            "filter": [
                {
                    "match": {
                        "lang": "en"
                    }
                }
            ]
        }
    },
    "size": 10,
    "from": 0,
    "sort": []
}

如果我想用searchstring进行搜索，那么它也能很好地工作：

{
    "query": {
        "query_string": {
            "query": "big size"
        }
    },
    "size": 10,
    "from": 0,
    "sort": []
}

但我无法通过filter和searchstring一起从elastic中获取数据：

{
    "query": {
        "query_string": {
            "query": "big size"
        },
        "bool": {
            "filter": [
                {
                    "match": {
                        "lang": "en"
                    }
                }
            ]
        }
    },
    "size": 10,
    "from": 0,
    "sort": []
}

我收到下一个错误：

Error 400.
{"error":{"root_cause":[{"type":"parsing_exception","reason":"[query_string] malformed query, expected [END_OBJECT] but found [FIELD_NAME]","line":1,"col":76}],"type":"parsing_exception","reason":"[query_string] malformed query, expected [END_OBJECT] but found [FIELD_NAME]","line":1,"col":76},"status":400}