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ElasticSearch 比對查詢(match、match_phrase)ElasticSearch 比對查詢(match、match_phrase)

ElasticSearch 比對查詢(match、match_phrase)

match查詢屬于全文查詢,在查詢時,ES會先分析查詢字元串,然後根據分詞建構查詢。
match_phrase在查詢時也會先分析查詢字元串,然後對這些詞項進行搜尋,不同的是match_phrase查詢隻會保留包含全部查詢字元串的文檔

1、先向ES查詢倆個文檔,以便測試:

PUT test2/_doc/1
{
  "name": "寶馬法拉利蘭博基尼"
}

PUT test2/_doc/2
{
  "name": "寶馬蘭博基尼布加迪威龍"
}
           

2、使用match查詢

GET test2/_search
{
  "query": {
    "match": {
      "name": "寶馬法拉利"
    }
  }
}
           

查詢結果為全部文檔:

"hits" : {
    "total" : 2,
    "max_score" : 1.4384104,
    "hits" : [
      {
        "_index" : "test2",
        "_type" : "_doc",
        "_id" : "1",
        "_score" : 1.4384104,
        "_source" : {
          "name" : "寶馬法拉利蘭博基尼"
        }
      },
      {
        "_index" : "test2",
        "_type" : "_doc",
        "_id" : "2",
        "_score" : 0.5753642,
        "_source" : {
          "name" : "寶馬蘭博基尼布加迪威龍"
        }
      }
    ]
  }
           

3、使用match_phrase查詢

GET test2/_search
{
  "query": {
    "match_phrase": {
      "name": "寶馬法拉利"
    }
  }
}
           

查詢結果隻保留了包含“寶馬法拉利”的文檔,雖然第二個文檔也有這倆詞,但不是連着的

{
  "took" : 3,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 1,
    "max_score" : 1.4384104,
    "hits" : [
      {
        "_index" : "test2",
        "_type" : "_doc",
        "_id" : "1",
        "_score" : 1.4384104,
        "_source" : {
          "name" : "寶馬法拉利蘭博基尼"
        }
      }
    ]
  }
}
           

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