CODEWITHSUNDEEP
elasticsearchfuzzy-searchn-gramelasticsearch-2.0nosql
Shai M.
Shai M.

Reputation: 1314

Fuzzy contains query with elasticSearch

How can I perform a query that do fuzzy and contains on strings? Let's say I have the following document:

{ ... "name":"william shakespeare" ... }

I would like to receive the document for the following queries:

  1. "William" (will return all the williams)
  2. "Willeam" (same as 1)
  3. "William Shake" (will return only the document that contains "William Shake"
  4. "Wiliam sake" (same as 3)
  5. "william shakespeare" / "William Shakespeare" / "William shakespeer" (will return only william shakespeare

I tried to use ngram analyzer and fuzziness queries with no success.

{
  "settings": {
    "analysis": {
      "filter": {
        "ngram_analyzer_filter": {
          "type": "ngram",
          "min_gram": 2,
          "max_gram": 15
        }
      },
      "analyzer": {
        "ngram_analyzer": {
          "type": "custom",
          "tokenizer": "standard",
          "filter": [
            "lowercase",
            "ngram_analyzer_filter"
          ]
        }
      }
    }
  },
  "mappings": {
    "my_type": {
      "properties": {
        "name": {
          "type": "string",
          "analyzer": "ngram_analyzer",
          "search_analyzer": "standard",
          "fields": {
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        }
      }
    }
  }
}

my query:

{
  "query": {
    "multi_match": {
      "query": "william shake",
      "fields": [
        "name.raw"
      ],
      "fuzziness": 2,
      "minimum_should_match":2
    }
  }
}

Upvotes: 0

Views: 545

Answers (1)

vinod_vh
vinod_vh

Reputation: 1071

Try below query.

{
  'query': {
    'multi_match': {
      'fields':  [ 
          "name.raw" 
        ],
        'query': $scope.search.queryTerm,
        'fuzziness': 2,
        'prefix_length': 1
    }
  }
}

Upvotes: 0

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