弹性搜索索引上的多个分析器

如何解决弹性搜索索引上的多个分析器

我有一个带有Name字段的索引。 我想在该字段上使用soundex分析器和同义词分析器。

我想在一个索引中同时实现这两者。这有可能吗？ 请帮助我的专家在那里

索引1

{
"settings": {
"index": {
"number_of_shards": "1","provided_name": "phonetic_sample","creation_date": "1603097131476","analysis": {
"filter": {
"my_soundex": {
"replace": "false","type": "phonetic","encoder": "soundex"
}
},"analyzer": {
"my_analyzer": {
"filter": [
"lowercase","my_soundex"
],"tokenizer": "standard"
}
}
}

我查询Catherine并匹配Catherine，Katherine和Kathryn

索引2

{
"settings": {
"index": {
"number_of_shards": "1","provided_name": "phonetic_synonym","creation_date": "1603121439096","analysis": {
"filter": {
"synonym": {
"format": "wordnet","type": "synonym","synonyms": [
"s(100000001,1,'Bill',v,0).","s(100000001,2,'William',3,'Wilhelm',0)."
]
}
},"analyzer": {
"synonym": {
"filter": [
"synonym"
],"tokenizer": "whitespace"
}
}
}

我查询比尔并匹配比尔，威廉和威廉

解决方法

您可以使用multi-field with multiple analyzers。您可以声明 name字段的每个子字段，每个子字段都有一个不同的分析器。

下面是修改后的索引映射。

索引映射：

{
  "settings": {
    "index": {
      "analysis": {
        "filter": {
          "my_soundex": {
            "type": "phonetic","encoder": "metaphone","replace": false
          },"synonym": {
            "format": "wordnet","type": "synonym","synonyms": [
              "s(100000001,1,'Bill',v,0).","s(100000001,2,'William',3,'Wilhelm',0)."
            ]
          }
        },"analyzer": {
          "synonym": {
            "filter": [
              "synonym"
            ],"tokenizer": "whitespace"
          },"my_analyzer": {
            "filter": [
              "lowercase","my_soundex"
            ],"tokenizer": "standard"
          }
        }
      }
    }
  },"mappings": {
    "properties": {
      "name": {
        "type": "text","analzyer": "synonym","search_analyzer": "synonym","fields": {
          "content": {
            "type": "text","analyzer": "my_analyzer","search_analyzer": "my_analyzer"
          }
        }
      }
    }
  }
}

然后，您可以在查询中引用name和name.content。您的搜索查询将如下所示：

{
  "query": {
    "multi_match": {
      "query": "Bill","fields": [ 
        "name","name.content"
      ],"type": "most_fields" 
    }
  }
}