本文使用的elasticsearch是5.2.1，官方的multi-fields例子參見 https://www.elastic.co/guide/en/elasticsearch/reference/5.3/multi-fields.html

建立一個index及type和mapping 及setting 和analyzer和search_analyzer,注意此時已經是multi-fields了，如下：

PUT /test/
{
    "settings": {
    "analysis": {
      "analyzer": {
        "my_analyzer": {
          "tokenizer": "my_tokenizer"
        },
        "my_analyzer2": {
          "type":      "pattern",
          "pattern":   "\\W+|_", 
          "lowercase": true
        }
      },
      "tokenizer": {
        "my_tokenizer": {
          "type": "pattern",
          "pattern": "\\w+|\"(.+?)\"",
          "group":0
        }
      }
    }
  },
  "mappings": {
    "tech": {
      "properties": {
        "body": {
          "type": "text",
          "analyzer":"standard",
          "search_analyzer": "standard",
          "fields": {
          "syh": {
            "type": "text",
            "analyzer":"my_analyzer",
            "search_analyzer": "my_analyzer"
          },
          "xhx": {
            "type": "text",
            "analyzer":"my_analyzer2",
            "search_analyzer": "my_analyzer2"
          }
        }
      }
    }
  }
}
}

修改剛才建立的type的mapping為multi-fields

PUT /test/tech/_mapping
{
  "tech": {
    "properties": {
      "body": {
        "type": "text",
        "analyzer":"standard",
        "search_analyzer": "standard",
        "fields": {
          "syh": {
            "type": "text",
            "analyzer":"my_analyzer",
            "search_analyzer": "my_analyzer"
          },
          "xhx": {
            "type": "text",
            "analyzer":"my_analyzer2",
            "search_analyzer": "my_analyzer2"
          }
        }
      }
    }
  }
}

修改剛才建立的索引的setting,本例是修改analyzer，注意修改setting必須先關閉索引,然後再開啟索引

POST  /test/_close
PUT /test/_settings
{
  "settings": {
    "analysis": {
      "analyzer": {
        "my_analyzer": {
          "tokenizer": "my_tokenizer"
        },
        "my_analyzer2": {
          "type":      "pattern",
          "pattern":   "\\W+|_", 
          "lowercase": true
        }
      },
      "tokenizer": {
        "my_tokenizer": {
          "type": "pattern",
          "pattern": "\\w+|\"(.+?)\"",
          "group":0
        }
      }
    }
  }
}
POST  /test/_open

針對剛才索引test的型別tech的不同的欄位做analyzer,同樣的文件其分詞效果是不一樣的。

檢視body.syh欄位的帶雙引號分詞效果

POST /test/_analyze
{
  "field": "body.syh",
  "text": "description \"this device in beijing office \" \"what are you going to do\" email_address"
}

檢視body.xhx欄位的帶下劃線的分詞效果

POST /test/_analyze
{
  "field": "body.xhx",
  "text": "description \"this device in beijing office \" \"what are you going to do\" email_address"
}

檢視body欄位的standard的分詞效果

POST /test/_analyze
{
  "field": "body",
  "text": "description \"this device in beijing office \" \"what are you going to do\" email_address"
}

使用bulk插入一條資料

POST _bulk/?refresh=true
{ "index" : { "_index" : "test", "_type" : "tech" } }
{ "body": "description \"this device in beijing office\" \"what are you going to do\" email_address"}

查詢body欄位的standard搜尋

POST /test/_search?pretty
{
  "query": {
    "term": {
      "body": "description"
    }
  }
}

查詢body.xhx欄位的my_analyzer2搜尋

POST /test/_search?pretty
{
  "query": {
    "term": {
      "body.syh": "\"this device in beijing office\""
    }
  }
}

POST /test/_search?pretty
{
  "query": {
    "term": {
      "body.xhx": "address"
    }
  }
}