elasticsearch - 搜索文档在ElasticSearch的列表中至少有一个单词

Question

我想用以下方式搜索文档:1)在三个字段之一中必须存在的某些短语2)和一个列表词，其中至少一个出现在其中一个字段中，例如['supply'，'procure'， '采购']。

以下是我使用的满足第一个要求的当前ES查询。但是，如何在此查询中添加单词列表？

{
    "query": {
        "bool": {
            "must": [ 
                {
                    "multi_match": {
                        "query": "ford",
                        "fields": [
                            "title",
                            "description",
                            "news_content"
                        ]
                    }
                },
                {
                    "multi_match": {
                        "query": "lone star",
                        "fields": [
                            "title",
                            "description",
                            "news_content"
                        ],
                        "type": "phrase"
                    }
                }
            ]
        }
    }
}

Answer 1

您快到了，只需在查询中添加运算符OR，即可解决list words in which at least one of them occurs in one of the fields,的第二个用例

让我举例说明一下:

索引定义

{
    "mappings" :{
        "properties" :{
            "title" :{
                "type" : "text"
            },
            "description":{
                "type" : "text"
            }
        }
    }
}

索引样本文档

{
    "title" : "foo",
    "description": "opster"
}
{
    "title" : "bar",
    "description": "stackoverflow"
}
{
    "title" : "baz",
    "description": "nodesc"
}

搜索查询，请注意我正在搜索foo amit，单词列表，因此其中至少一个单词应与 2个字段中的任何一个匹配

{
    "query": {
        "bool": {
            "should": {
                "multi_match": {
                    "query": "foo amit",
                    "fields": [
                        "title",
                        "description"
                    ],
                    "operator":   "or" --> notice operator OR
                }
            }
        }
    }
}

搜索结果

"hits": [
            {
                "_index": "white",
                "_type": "_doc",
                "_id": "1",
                "_score": 0.9808291,
                "_source": {
                    "title": "foo",  --> notice this match as `foo` is present and we used opertor OR in query.
                    "description": "opster"
                }
            }
        ]