elasticsearch - Elasticsearch如何排除分数= 0文档

Question

我有这样的查询:

{ 
    "size": 4, 
    "query": { 
        "bool": { 
            "should": [{ 
                "terms": { "property": ["iPhone earbuds", "iPhone 6 case"] } 
            }, { 
                "constant_score": { 
                    "filter": { "match_all": {} }, 
                    "boost": 0 
                } 
            }], 
            "must_not": { 
                "ids": { 
                    "values": ["doc 1", "doc 2"], 
                    "boost": 0 
                } 
            }, 
            "minimum_should_match": 1 
        } 
    }, 
    "sort": [] 
}

一些空对象只是我如何构建查询JSON的人工产物，它们在大多数情况下都具有含义，这只是我找到的最简单的示例。

为什么会以分数= 0返回文档，我该如何阻止这种情况发生？

Answer 1

那会是

{ 
    "constant_score": { 
        "filter": { "match_all": {} },
        "boost": 0
    }
}

匹配所有内容，这部分的得分为0；这也满足您的"minimum_should_match": 1规则。

您可以进一步简化示例(但我仍然不确定此查询要实现什么):

PUT /test/test/1
{
  "foo": "iphone"
}
PUT /test/test/2
{
  "foo": "iphone earbuds"
}
PUT /test/test/3
{
  "foo": "iphone case"
}
PUT /test/test/4
{
  "foo": "bar"
}

POST /test/_search
{
  "query": { 
        "bool": { 
            "should": [
                { 
                    "terms": { "foo": ["iphone"] } 
                }, { 
                    "constant_score": { 
                        "filter": { "match_all": {} },
                        "boost": 0 
                    }
                }
            ], 
            "minimum_should_match": 1 
        } 
    }
}

DELETE /test