在 ElasticSearch 查询中保留术语的顺序 [英] Preserving order of terms in ElasticSearch query

问题描述

是否可以在 ElasticSearch 中形成一个保留术语排序的查询?

Is it possible in ElasticSearch to form a query that would preserve the ordering of the terms?

一个简单的例子是使用标准分析器对这些文档进行索引:

A simple example would be having these documents indexed using standard analyzer:

1. 你知道搜索
2. 你知道搜索
3. 了解你的搜索

我可以查询+you +search，这将返回所有文档，包括第三个.

I could query for +you +search and this would return me all documents, including the third one.

如果我只想检索具有此特定顺序的术语的文档怎么办?我可以形成一个可以为我做的查询吗?

What if I wanted to only retrieve the documents which have the terms in this specific order? Can I form a query that would do that for me?

考虑到可以通过简单地引用文本来使用短语:"you know"(检索第 1 和第 2 文档)在我看来应该有一种方法可以保留多个术语的顺序不相邻.

Considering it is possible for phrases by simply quoting the text: "you know" (retrieve 1st and 2nd docs) it feels to me like there should be a way of preserving the order for multiple terms that aren't adjacent.

在上面的简单示例中，我可以使用邻近搜索，但这不包括更复杂的情况.

In the above simple example I could use proximity searches, but this doesn't cover more complex cases.

推荐答案

你可以使用 span_near 查询，它有一个 in_order 参数.

You could use a span_near query, it has a in_order parameter.

{
    "query": {
        "span_near": {
            "clauses": [
                {
                    "span_term": {
                        "field": "you"
                    }
                },
                {
                    "span_term": {
                        "field": "search"
                    }
                }
            ],
            "slop": 2,
            "in_order": true
        }
    }
}

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