Expecting another result(scoring) on function_score

Elastic Stack Elasticsearch
1

Hi everybody,

I am wondering about the scoring of my query. I am using a function_score on the field weight of my documents. If I search for the term wien two documents are coming from two indices.

Here my query:

GET _all/_search
{
 "query": {
  "function_score" : {
    "query" : {
      "bool" : {
        "should" : [
          {
            "bool" : {
              "must" : [
                {
                  "multi_match" : {
                    "query" : "wien",
                    "fields" : [
                      "city.name_de^1.0"
                    ],
                    "type" : "best_fields",
                    "operator" : "OR",
                    "slop" : 0,
                    "fuzziness" : "0",
                    "prefix_length" : 0,
                    "max_expansions" : 50,
                    "lenient" : false,
                    "zero_terms_query" : "NONE",
                    "boost" : 1.0
                  }
                }
              ],
              "filter" : [
                {
                  "term" : {
                    "_index" : {
                      "value" : "city",
                      "boost" : 1.0
                    }
                  }
                },
                {
                  "term" : {
                    "enabled" : {
                      "value" : true,
                      "boost" : 1.0
                    }
                  }
                }
              ],
              "should" : [
                {
                  "bool" : {
                    "disable_coord" : false,
                    "adjust_pure_negative" : true,
                    "boost" : 1.0
                  }
                },
                {
                  "bool" : {
                    "disable_coord" : false,
                    "adjust_pure_negative" : true,
                    "boost" : 1.0
                  }
                }
              ],
              "disable_coord" : false,
              "adjust_pure_negative" : true,
              "boost" : 1.0
            }
          },
          {
            "bool" : {
              "must" : [
                {
                  "multi_match" : {
                    "query" : "wien",
                    "fields" : [
                      "servicename.name_de^1.0"
                    ],
                    "type" : "best_fields",
                    "operator" : "OR",
                    "slop" : 0,
                    "fuzziness" : "0",
                    "prefix_length" : 0,
                    "max_expansions" : 50,
                    "lenient" : false,
                    "zero_terms_query" : "NONE",
                    "boost" : 1.0
                  }
                }
              ],
              "filter" : [
                {
                  "term" : {
                    "_index" : {
                      "value" : "servicename",
                      "boost" : 1.0
                    }
                  }
                },
                {
                  "term" : {
                    "enabled" : {
                      "value" : true,
                      "boost" : 1.0
                    }
                  }
                }
              ],
              "should" : [
                {
                  "bool" : {
                    "disable_coord" : false,
                    "adjust_pure_negative" : true,
                    "boost" : 1.0
                  }
                }
              ],
              "disable_coord" : false,
              "adjust_pure_negative" : true,
              "boost" : 1.0
            }
          }
        ],
        "disable_coord" : false,
        "adjust_pure_negative" : true,
        "boost" : 1.0
      }
    },
    "functions" : [
      {
        "filter" : {
          "match_all" : {
            "boost" : 1.0
          }
        },
        "field_value_factor" : {
          "field" : "weight",
          "factor" : 1.0,
          "modifier" : "none"
        }
      }
    ],
    "score_mode" : "multiply",
    "max_boost" : 3.4028235E38,
    "boost" : 1.0
  }
}
}
2

(because of limitation of 7000 chars)...
On the other side my result:

"hits": [
  {
    "_index": "city",
    "_type": "city",
    "_id": "589",
    "_score": 377704.28,
    "_source": {
      "svno": 589,
      "city": {
        "name": "Wien",
        "name_de": "Wien",
        "name_it": "Vienna",
        "name_fr": "Vienne",
        "name_hu": "Bécs",
        "name_cs": "Vídeň"
      },
      "regions": [
        {
          "name": "Wien",
          "name_de": "Wien",
          "name_it": "Vienne",
          "name_fr": "Vienna",
          "name_hu": "Bécs",
          "name_cs": "Vídeň"
        }
      ],
      "nation": {
        "name": "Österreich",
        "name_de": "Österreich",
        "name_it": "Austria",
        "name_fr": "Autriche",
        "name_hu": "Ausztria",
        "name_cs": "Rakousko"
      },
      "location": {
        "lat": 48.20827865600586,
        "lon": 16.373079299926758
      },
      "weight": 32300
    }
  },
  {
    "_index": "servicename",
    "_type": "servicename",
    "_id": "593",
    "_score": 279269.25,
    "_source": {
      "id": "593",
      "servicename": {
        "name": "Wien",
        "name_de": "Wien",
        "name_it": "Vienne",
        "name_fr": "Vienna",
        "name_hu": "Bécs",
        "name_cs": "Vídeň"
      },
      "city": null,
      "region": {
        "svno": 593,
        "regions": [
          {
            "name": "Wien",
            "name_de": "Wien",
            "name_it": "Vienne",
            "name_fr": "Vienna",
            "name_hu": "Bécs",
            "name_cs": "Vídeň"
          }
        ],
        "nation": {
          "name": "Österreich",
          "name_de": "Österreich",
          "name_it": "Austria",
          "name_fr": "Autriche",
          "name_hu": "Ausztria",
          "name_cs": "Rakousko"
        }
      },
      "theme": null,
      "contract": null,
      "enabled": true,
      "weight": 35300
    }
  }
	]

I dont understand why the result of the city index has a higher score than the result of the servicename index. The weight on servicename is 35300 and from city is 32300.

I expect that the servicename document should be the best result.

Do you have any explanation for that?

Thanks!

3

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