elasticsearch - 如何在 Elasticsearch 5 中向 function_score 查询添加过滤器

Question

如何在 Elasticsearch 5.2.0 中将此过滤器添加到下面的查询中。

我试图将过滤器包装在过滤数组中，但没有成功。

过滤器

"filter" : {
     "term" : { "body.category" : 1}
}

查询

{
  "query": {
    "function_score": {
      "query": {
        "multi_match": {
          "operator": "and",
          "query": "my search",
          "fuzziness": 1,
          "fields": [
            "body.name^5",
            "body.manufacturer^33",
            "body.sections.name",
            "body.sections.parent.name",
            "body.sections.parent.parent.name"
          ]
        }
      },
      "functions": [
        {
          "field_value_factor": {
            "field": "body.rank"
          }
        }
      ],
      "score_mode": "multiply"
    }
  }
}

Answer 1

我通过用 bool 值包装查询并将过滤器放在那里解决了这个问题。

   {
      "query": {
        "function_score": {
          "query": {
            "bool": {
              "filter": {
                "term": {
                  "body.category": 1
                }
              },
              "should": {
                "multi_match": {
                  "operator": "and",
                  "query": "my search",
                  "fuzziness": 1,
                  "fields": [
                    "body.name",
                    "body.manufacturer",
                    "body.sections.name",
                    "body.sections.parent.name",
                    "body.sections.parent.parent.name"
                  ]
                }
              }
            }
          },
          "functions": [
            {
              "field_value_factor": {
                "field": "body.rank"
              }
            }
          ],
          "score_mode": "multiply"
        }
      }
    }