boost - 在Elasticsearch中，如何 boost 某些领域？

我的目标是将boost应用于字段“name”(请参见下面的示例)，但是当我搜索“john”时遇到两个问题:

当名称为“dany”和时，

搜索也匹配{name: "dany", message: "hi bob"}

搜索不会通过消息增强名称(名称为“john”的行应位于顶部)

要点在https://gist.github.com/tomaspet262/5535774上

(由于stackoverflow的表单提交返回了“您的帖子似乎包含未正确格式化为代码的代码”，该代码已正确格式化)。

最佳答案

我建议使用查询时间增加而不是索引时间增加。

#DELETE
curl -XDELETE 'http://localhost:9200/test'
echo
# CREATE
curl -XPUT 'http://localhost:9200/test?pretty=1' -d '{
    "settings": {
       "analysis" : {
            "analyzer" : {
               "my_analyz_1" : {
                    "filter" : [
                        "standard",
                        "lowercase",
                        "asciifolding"
                    ],
                    "type" : "custom",
                    "tokenizer" : "standard"
                }
            }
        }
    }
}'
echo
# DEFINE
curl -XPUT 'http://localhost:9200/test/posts/_mapping?pretty=1' -d '{
    "posts" : {
        "properties" : {
            "name" : {
              "type" : "string",
              "analyzer" : "my_analyz_1"
            },
            "message" : {
              "type" : "string",
              "analyzer" : "my_analyz_1"
            }
        }
    }
}'
echo
# INSERT
curl localhost:9200/test/posts/1 -d '{name: "john", message: "hi john"}'
curl localhost:9200/test/posts/2 -d '{name: "bob", message: "hi john, how are you?"}'
curl localhost:9200/test/posts/3 -d '{name: "john", message: "bob?"}'
curl localhost:9200/test/posts/4 -d '{name: "dany", message: "hi bob"}'
curl localhost:9200/test/posts/5 -d '{name: "dany", message: "hi john"}'
echo
# REFRESH
curl -XPOST localhost:9200/test/_refresh
echo
# SEARCH
curl "localhost:9200/test/posts/_search?pretty=1" -d '{
    "query": {
        "multi_match": {
            "query": "john",
            "fields": ["name^2", "message"]
        }
    }
}'