Link Search Menu Expand Document Documentation Menu
文档

在混合查询中使用排序

2.16 版本引入

默认情况下，混合搜索返回的结果按分数降序排列。您可以通过在搜索请求中提供 sort 条件来对混合查询结果应用排序。有关排序条件的更多信息，请参阅结果排序。当对混合搜索应用排序时，结果会根据指定的排序条件从分片中获取。因此，搜索结果会相应地排序，并且文档分数将为 null。只有当文档按 _score 排序时，混合搜索的排序结果中才会包含分数。

在以下示例中，混合查询搜索请求按 doc_price 应用了排序

GET /my-nlp-index/_search?search_pipeline=nlp-search-pipeline
{
  "query": {
    "hybrid": {
      "queries": [
        {
          "term": {
            "category": "permission"
          }
        },
        {
          "bool": {
            "should": [
              {
                "term": {
                  "category": "editor"
                }
              },
              {
                "term": {
                  "category": "statement"
                }
              }
            ]
          }
        }
      ]
    }
  }, 
    "sort":[
       {
         "doc_price": {
             "order": "desc"
         }
       }
    ]
}

响应包含按 doc_price 降序排列的匹配文档

{
    "took": 35,
    "timed_out": false,
    "_shards": {
        "total": 3,
        "successful": 3,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": {
            "value": 4,
            "relation": "eq"
        },
        "max_score": 0.5,
        "hits": [
            {
                "_index": "my-nlp-index",
                "_id": "7yaM4JABZkI1FQv8AwoN",
                "_score": null,
                "_source": {
                    "category": "statement",
                    "doc_keyword": "entire",
                    "doc_index": 8242,
                    "doc_price": 350
                },
                "sort": [
                    350
                ]
            },
            {
                "_index": "my-nlp-index",
                "_id": "8CaM4JABZkI1FQv8AwoN",
                "_score": null,
                "_source": {
                    "category": "statement",
                    "doc_keyword": "idea",
                    "doc_index": 5212,
                    "doc_price": 200
                },
                "sort": [
                    200
                ]
            },
            {
                "_index": "my-nlp-index",
                "_id": "6yaM4JABZkI1FQv8AwoM",
                "_score": null,
                "_source": {
                    "category": "permission",
                    "doc_keyword": "workable",
                    "doc_index": 4976,
                    "doc_price": 100
                },
                "sort": [
                    100
                ]
            },
            {
                "_index": "my-nlp-index",
                "_id": "7iaM4JABZkI1FQv8AwoN",
                "_score": null,
                "_source": {
                    "category": "editor",
                    "doc_index": 9871,
                    "doc_price": 30
                },
                "sort": [
                    30
                ]
            }
        ]
    }
}

在以下示例中，按 _id 应用了排序

GET /my-nlp-index/_search?search_pipeline=nlp-search-pipeline
{
  "query": {
    "hybrid": {
      "queries": [
        {
          "term": {
            "category": "permission"
          }
        },
        {
          "bool": {
            "should": [
              {
                "term": {
                  "category": "editor"
                }
              },
              {
                "term": {
                  "category": "statement"
                }
              }
            ]
          }
        }
      ]
    }
  },
  "sort":[
     {
        "_id": {
          "order": "desc"   
        }
     } 
  ]
}

响应包含按 _id 降序排列的匹配文档

{
    "took": 33,
    "timed_out": false,
    "_shards": {
        "total": 3,
        "successful": 3,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": {
            "value": 4,
            "relation": "eq"
        },
        "max_score": 0.5,
        "hits": [
            {
                "_index": "my-nlp-index",
                "_id": "8CaM4JABZkI1FQv8AwoN",
                "_score": null,
                "_source": {
                    "category": "statement",
                    "doc_keyword": "idea",
                    "doc_index": 5212,
                    "doc_price": 200
                },
                "sort": [
                    "8CaM4JABZkI1FQv8AwoN"
                ]
            },
            {
                "_index": "my-nlp-index",
                "_id": "7yaM4JABZkI1FQv8AwoN",
                "_score": null,
                "_source": {
                    "category": "statement",
                    "doc_keyword": "entire",
                    "doc_index": 8242,
                    "doc_price": 350
                },
                "sort": [
                    "7yaM4JABZkI1FQv8AwoN"
                ]
            },
            {
                "_index": "my-nlp-index",
                "_id": "7iaM4JABZkI1FQv8AwoN",
                "_score": null,
                "_source": {
                    "category": "editor",
                    "doc_index": 9871,
                    "doc_price": 30
                },
                "sort": [
                    "7iaM4JABZkI1FQv8AwoN"
                ]
            },
            {
                "_index": "my-nlp-index",
                "_id": "6yaM4JABZkI1FQv8AwoM",
                "_score": null,
                "_source": {
                    "category": "permission",
                    "doc_keyword": "workable",
                    "doc_index": 4976,
                    "doc_price": 100
                },
                "sort": [
                    "6yaM4JABZkI1FQv8AwoM"
                ]
            }
        ]
    }
}
剩余 350 字符

有问题？。

想要贡献？ 或 。