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Elasticsearch? ??? ? ???? ?? ??
? ??? ??? MySQL ???? Elasticsearch?? ???? ????? ?? ??? ????? ??? ??????

Elasticsearch?? ???? ????? ?? ??? ????? ??? ??????

Oct 30, 2024 pm 03:51 PM

How to Optimize Fuzzy Matching of Emails and Phone Numbers in Elasticsearch?

Elasticsearch? ??? ? ???? ?? ??

Elasticsearch? ???? ????? ??? ???? ?? ??? ?? ??? ??? ?????. ? ????? ??? ?? ???? ?? ??? ???? ??? ??? ??? ????? ??? ?????.

?? ??? ?? ??? ?? ???

???? ????? ????? ?? ????? ??? ?????. Elasticsearch?? ??? ?? ???? ???? ?? ????. ??? ???? ??? ?? ?? ???? ???? ?????? ?? ??? ???? ?? ??? ?????.

??? ???

index_email_analyzer ???? ?? ?????? ???? ??? ?????. ??? ?????. ?? ?? ???, name_ngram_filter ? Trim? ?? ??? ???? ???? ???? ????, ??? ??(3~20?)? ngram? ????, ??? ?????.

search_email_analyzer? ???? ?? ?????? ????? ??? ? ?? ??? ?????. ?? ngram ??? ???? ?? ??? ??? ?????.

?? ???

????? ?? index_phone_analyzer? digit_edge_ngram_tokenizer? ???? ??? ??? ngram? ?????. (1~15?) ??? ?????. ?? ?? ????? ?? ???? ???? ? ????. digit_only char ??? ?? ?? ????? ??? ?? ??? ?????.

search_phone_analyzer? ???? ?? ??? ???? ??? ?????? ???? ????? ??? ??? ???? ???.

??? ??

??? ??? ??? ?? ???? ???? ?? ?????.

PUT myindex
{
  "settings": {
    "analysis": {
      "analyzer": {
        "email_url_analyzer": {
          "type": "custom",
          "tokenizer": "uax_url_email",
          "filter": [ "trim" ]
        },
        "index_phone_analyzer": {
          "type": "custom",
          "char_filter": [ "digit_only" ],
          "tokenizer": "digit_edge_ngram_tokenizer",
          "filter": [ "trim" ]
        },
        "search_phone_analyzer": {
          "type": "custom",
          "char_filter": [ "digit_only" ],
          "tokenizer": "keyword",
          "filter": [ "trim" ]
        },
        "index_email_analyzer": {
          "type": "custom",
          "tokenizer": "standard",
          "filter": [ "lowercase", "name_ngram_filter", "trim" ]
        },
        "search_email_analyzer": {
          "type": "custom",
          "tokenizer": "standard",
          "filter": [ "lowercase", "trim" ]
        }
      },
      "char_filter": {
        "digit_only": {
          "type": "pattern_replace",
          "pattern": "\D+",
          "replacement": ""
        }
      },
      "tokenizer": {
        "digit_edge_ngram_tokenizer": {
          "type": "edgeNGram",
          "min_gram": "1",
          "max_gram": "15",
          "token_chars": [ "digit" ]
        }
      },
      "filter": {
        "name_ngram_filter": {
          "type": "ngram",
          "min_gram": "1",
          "max_gram": "20"
        }
      }
    }
  },
  "mappings": {
    "your_type": {
      "properties": {
        "email": {
          "type": "string",
          "analyzer": "index_email_analyzer",
          "search_analyzer": "search_email_analyzer"
        },
        "phone": {
          "type": "string",
          "analyzer": "index_phone_analyzer",
          "search_analyzer": "search_phone_analyzer"
        }
      }
    }
  }
}

?? ?? ??

"@gmail.com"?? ??? ??? ?? "136"?? ???? ????? ?????? ??? ?? ??? ??? ? ????.

POST myindex
{
  "query": {
    "term": {
      "email": "@gmail.com"
    }
  }
}

POST myindex
{
  "query": {
    "term": {
      "phone": "136"
    }
  }
}

??? ??? ??? ???? ???? ??? ??? ngram? ?????. ?????.

? ??? Elasticsearch?? ???? ????? ?? ??? ????? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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