您好，想请教您一个高亮搜索，同时展示关联字段的问题

PUT my_index

{

  "mappings": {

    "_doc": {

      "properties": {

        "data": {

          "type": "nested" 

        }

      }

    }

  }

}







POST my_index/_doc/1

{

  "data": [

    {

      "grade": 1,

      "comment": " This is test program"

    },

    {

      "grade": 2,

      "comment": " This is test program"

    },

    {

      "grade": 3,

      "comment": " This is commercial program"

    }

  ]

}





# 2 inner_hits能满足你的要求

POST my_index/_search

{

  "query": {

    "nested": {

      "path": "data",

      "query": {

        "match": {

          "data.comment": "commercial"

        }

      },

      "inner_hits": {}

    }

  },

  "highlight": {

    "fields": {

      "data.comment": {

        "number_of_fragments": 0

      }

    },

    "pre_tags": [

      "<em>"

    ],

    "post_tags": [

      "</em>"

    ]

  }

}



返回结果：

{

  "took" : 9,

  "timed_out" : false,

  "_shards" : {

    "total" : 5,

    "successful" : 5,

    "skipped" : 0,

    "failed" : 0

  },

  "hits" : {

    "total" : 1,

    "max_score" : 0.9808292,

    "hits" : [

      {

        "_index" : "my_index",

        "_type" : "_doc",

        "_id" : "1",

        "_score" : 0.9808292,

        "_source" : {

          "data" : [

            {

              "grade" : 1,

              "comment" : " This is test program"

            },

            {

              "grade" : 2,

              "comment" : " This is test program"

            },

            {

              "grade" : 3,

              "comment" : " This is commercial program"

            }

          ]

        },

        "highlight" : {

          "data.comment" : [

            "This is <em>commercial</em> program"

          ]

        },

        "inner_hits" : {

          "data" : {

            "hits" : {

              "total" : 1,

              "max_score" : 0.9808292,

              "hits" : [

                {

                  "_index" : "my_index",

                  "_type" : "_doc",

                  "_id" : "1",

                  "_nested" : {

                    "field" : "data",

                    "offset" : 2

                  },

                  "_score" : 0.9808292,

                  "_source" : {

                    "grade" : 3,

                    "comment" : " This is commercial program"

                  }

                }

              ]

            }

          }

        }

      }

    ]

  }

}