Elasticsearch phone numer

analyzed_approach

DELETE /phone_index

PUT /phone_index
{
   "settings": {
      "number_of_shards": 1,
      "analysis": {
         "filter": {
            "whitespace_remover": {
               "type": "pattern_replace",
               "pattern": " ",
               "replacement": ""
            },
            "punctuation_sign_remover": {
               "type": "pattern_replace",
               "pattern": "\\p{Punct}",
               "replacement": ""
            },
            "ngram_4_to_10_filter": {
               "type": "nGram",
               "min_gram": 4,
               "max_gram": 10
            }
         },
         "analyzer": {
            "phone_storing_analyzer": {
               "type": "custom",
               "filter": [
                  "punctuation_sign_remover",
                  "whitespace_remover",
                  "ngram_4_to_10_filter"
               ],
               "tokenizer": "keyword"
            },
            "phone_search_analyzer": {
               "type": "custom",
               "filter": [
                  "punctuation_sign_remover",
                  "whitespace_remover"
               ],
               "tokenizer": "keyword"
            }
         }
      }
   },
   "mappings": {
      "phone": {
         "properties": {
            "number": {
               "type": "string",
               "analyzer": "phone_storing_analyzer",
               "search_analyzer": "phone_search_analyzer"
            }
         }
      }
   }
}

# verify how phone_search_analyzer works

POST /phone_index/_analyze
{
    "analyzer": "phone_search_analyzer",
    "text": "+44 (207) 86"
}


# verify how phone_storing_analyzer works

POST /phone_index/_analyze
{
    "analyzer": "phone_storing_analyzer",
    "text": "+44 (207) 86"
}

# create test data

POST /phone_index/phone/_bulk
{ "index": { "_id": 1 }}
{ "number": "+44 207 8611417" }
{ "index": { "_id": 2 }}
{ "number": "+44 207 861 1417" }
{ "index": { "_id": 3 }}
{ "number": "+44 20 7861 1417" }
{ "index": { "_id": 4 }}
{ "number": "+(44) 20 7 8 6 1 1 4 1 7" }

# search phone numbers containing part of the number

GET /phone_index/phone/_search
{
    "query": {
        "match": {
            "number": "2 0 7 8"
        }
    }
}

# search by end of a number

GET /phone_index/phone/_search
{
    "query": {
        "match": {
            "number": "11417"
        }
    }
}

# search by beginning of a number

GET /phone_index/phone/_search
{
    "query": {
        "match": {
            "number": "+44 (20) 7"
        }
    }
}