ES设置字段搜索权重——Query-Time Boosting

Query-Time Boosting

In Prioritizing Clauses, we explained how you could use the boost parameter at search time to give one query clause more importance than another. For instance:

GET /_search

{

  "query": {

    "bool": {

      "should": [

        {

          "match": {

            "title": {

              "query": "quick brown fox",

              "boost": 2 

            }

          }

        },

        {

          "match": { 

            "content": "quick brown fox"

          }

        }

      ]

    }

  }

}

	The title query clause is twice as important as the content query clause, because it has been boosted by a factor of 2.
	A query clause without a boost value has a neutral boost of 1.

转自：https://www.elastic.co/guide/en/elasticsearch/guide/current/query-time-boosting.html