Elasticsearch 构建动态查询 - python

Question

关于 elasticsearch-py 的新手问题 api。我建立了姓名、地址、phone 号码等记录的索引，我可以使用 python 客户端进行查询例如

`elasticsearch.search(index = "index_name", q= 'first_name:"JOHN"')`

并得到合适的结果但是，我想将查询作为字符串参数

first_name = "JOHN"
qu = "first_name:".join(first_name)
elasticsearch.search(index = 'index_name', q = qu)

查询失败。有没有更好的方法来进行这些类型的动态查询？

Answer 1

你试过像这样解压字典吗：

mydict={"firstname ":名字} elasticsearch.search(index = 'index_name ", **mydict)

甚至：

mydict={"index": "index_name ","firstname ":名字} elasticsearch.search( **mydict)

mydict 可以有任何你需要的键值对

值得一试

Answer 2

我通常会将搜索查询构建为请求正文搜索。 https://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-body.html

示例如下：

searchdata = essearch.search(index=indexname, body= {
    "query": {
        "filtered": {
          "query": {
            "query_string": {
              "query": "name:fred"
            }
          },
          "filter": {
            "bool": {
              "must": [

                {
                  "exists": {
                    "field": "fieldname"
                  }
                },
                {
                  "exists": {
                    "field": "secondfieldname"
                  }
                }

              ]
            }
          }
        }
      },
      "size": 5000,
      "sort": [
         {
            "loggeddate": {
               "order": "desc"
            }
         }
      ]
    }
           )

Elasticsearch 构建动态查询 - python

Elasticsearch build dynamic query - python

python

elasticsearch

elasticsearch-py