Elasticsearch 如何使用 multi_match 和通配符 [英] Elasticsearch how to use multi_match with wildcard

问题描述

我有一个具有名称和姓氏属性的用户对象.我想使用一个查询来搜索这些字段，我在文档中找到了 multi_match，但我不知道如何正确使用通配符.是否可以?

I have a User object with properties Name and Surname. I want to search these fields using one query, and I found multi_match in the documentation, but I don't know how to properly use that with a wildcard. Is it possible?

我尝试使用 multi_match 查询，但没有奏效:

I tried with a multi_match query but it didn't work:

{
    "query": {
        "multi_match": {
            "query": "*mar*",
            "fields": [
                "user.name",
                "user.surname"
            ]
        }
    }
}

推荐答案

或者，您可以使用带有通配符的 query_string 查询.

Alternatively you could use a query_string query with wildcards.

"query": {
    "query_string": {
        "query": "*mar*",
        "fields": ["user.name", "user.surname"]
    }
}

这将比在索引时使用 nGram 过滤器慢(请参阅我的其他答案)，但是如果您正在寻找快速而肮脏的解决方案...

This will be slower than using an nGram filter at index-time (see my other answer), but if you are looking for a quick and dirty solution...

我也不确定你的映射，但如果你使用 user.name 而不是 name 你的映射需要看起来像这样:

Also I am not sure about your mapping, but if you are using user.name instead of name your mapping needs to look like this:

"your_type_name_here": {
    "properties": {
        "user": {
            "type": "object",
            "properties": {
                "name": {
                    "type": "string"
                },
                "surname": {
                    "type": "string"
                }
            }
        }
    }
}

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