ElasticSearch學習筆記 | Multi_match多字段比對、bool複合查詢

本文測試資料為官方提供的測試資料，導入方法在學習筆記本章節第一篇中：https://blog.csdn.net/qq_20051535/article/details/113242821

一、Multi_match多字段比對

例：查詢 address 和 city 中任意一項包含 mill 的結果

GET bank/_search
{
  "query": {
    "multi_match": {
      "query": "mill",
      "fields": ["address", "email"]
    }
  }
}
           

傳回結果：

{
  "took" : 0,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 4,
      "relation" : "eq"
    },
    "max_score" : 5.4032025,
    "hits" : [
      {
        "_index" : "bank",
        "_type" : "account",
        "_id" : "970",
        "_score" : 5.4032025,
        "_source" : {
          "account_number" : 970,
          "balance" : 19648,
          "firstname" : "Forbes",
          "lastname" : "Wallace",
...
           

二、bool複合查詢

如果我們面對更加複雜的查詢條件需要采用 bool 複合查詢

例如：

我們希望查詢 gender 是 M、address 包含 mill、年齡不能是28、lastname最好是Hines的結果：

GET bank/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "gender": "M"
          }
        },
        {
          "match": {
            "address": "mill"
          }
        }
      ],
      "must_not": [
        {
          "match": {
            "age": "28"
          }
        }
      ],
      "should": [
        {
          "match": {
            "lastname": "Hines"
          }
        }
      ]
    }
  }
}
           

傳回：

{
  "took" : 13,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 2,
      "relation" : "eq"
    },
    "max_score" : 12.585751,
    "hits" : [
      {
        "_index" : "bank",
        "_type" : "account",
        "_id" : "345",
        "_score" : 12.585751,
        "_source" : {
          "account_number" : 345,
          "balance" : 9812,
          "firstname" : "Parker",
          "lastname" : "Hines",
          "age" : 38,
          "gender" : "M",
          "address" : "715 Mill Avenue",
          "employer" : "Baluba",
          "email" : "[email protected]",
          "city" : "Blackgum",
          "state" : "KY"
        }
      },
      {
        "_index" : "bank",
        "_type" : "account",
        "_id" : "136",
        "_score" : 6.0824604,
        "_source" : {
          "account_number" : 136,
          "balance" : 45801,
          "firstname" : "Winnie",
          "lastname" : "Holland",
          "age" : 38,
          "gender" : "M",
          "address" : "198 Mill Lane",
          "employer" : "Neteria",
          "email" : "[email protected]",
          "city" : "Urie",
          "state" : "IL"
        }
      }
    ]
  }
}