elasticsearch 之 percolator 类型

﹏ヽ暗。殇╰゛Y 2021-12-13 14:27 307阅读 0赞

### 特殊查询（percolator） ###

*  创建

curl -X PUT "localhost:9200/my-index" -H 'Content-Type: application/json' -d' { "mappings": { "_doc": { "properties": { "message": { "type": "text" }, "query": { "type": "percolator" } } } } } '

*  注册一个查询到 percolator

curl -X PUT "localhost:9200/my-index/_doc/1?refresh" -H 'Content-Type: application/json' -d' { "query" : { "match" : { "message" : "bonsai tree" } } } '

*  匹配使用

curl -X GET "localhost:9200/my-index/_search" -H 'Content-Type: application/json' -d' { "query" : { "percolate" : { "field" : "query", "document" : { "message" : "A new bonsai tree in the office" } } } } '

# 结果
    { 
      "took" : 2,
      "timed_out" : false,
      "_shards" : { 
        "total" : 5,
        "successful" : 5,
        "skipped" : 0,
        "failed" : 0
      },
      "hits" : { 
        "total" : 1,
        "max_score" : 0.5753642,
        "hits" : [
          { 
            "_index" : "my-index",
            "_type" : "_doc",
            "_id" : "1",
            "_score" : 0.5753642,
            "_source" : { 
              "query" : { 
                "match" : { 
                  "message" : "bonsai tree"
                }
              }
            },
            "fields" : { 
              "_percolator_document_slot" : [
                0
              ]
            }
          }
        ]
      }
    }

**注：查询的字段必须包含在创建的映射中。**

参考：

1.  创建：[https://www.elastic.co/guide/en/elasticsearch/reference/6.4/percolator.html][https_www.elastic.co_guide_en_elasticsearch_reference_6.4_percolator.html]
2.  查询使用：[https://www.elastic.co/guide/en/elasticsearch/reference/6.4/query-dsl-percolate-query.html][https_www.elastic.co_guide_en_elasticsearch_reference_6.4_query-dsl-percolate-query.html]

[https_www.elastic.co_guide_en_elasticsearch_reference_6.4_percolator.html]: https://www.elastic.co/guide/en/elasticsearch/reference/6.4/percolator.html
[https_www.elastic.co_guide_en_elasticsearch_reference_6.4_query-dsl-percolate-query.html]: https://www.elastic.co/guide/en/elasticsearch/reference/6.4/query-dsl-percolate-query.html