Search with phonetic plugin, Elasticsearch-7.6.1

Elastic Stack Elasticsearch
1

Hi, I'm trying to search with analysis-phonetic plugin and cannot get matching results. Please help!
I've installed plugin, and took example from documentation

PUT /phonetic_sample

{
  "settings": {
    "index": {
      "analysis": {
        "analyzer": {
          "my_analyzer": {
            "tokenizer": "standard",
            "filter": [
              "lowercase",
              "my_metaphone"
            ]
          }
        },
        "filter": {
          "my_metaphone": {
            "type": "phonetic",
            "encoder": "metaphone",
            "replace": false
          }
        }
      }
    }
  }
}

GET /phonetic_sample/_analyze is working fine

{
  "analyzer": "my_analyzer",
  "text": "lopez" 
}

Output

{
    "tokens": [
        {
            "token": "LPS",
            "start_offset": 0,
            "end_offset": 5,
            "type": "<ALPHANUM>",
            "position": 0
        },
        {
            "token": "lopez",
            "start_offset": 0,
            "end_offset": 5,
            "type": "<ALPHANUM>",
            "position": 0
        }
    ]
}

Added a document

PUT /phonetic_sample/_doc/1

{"firstname": "cindy",
"lastname": "lopes"
}

Search return is empty

GET /phonetic_sample/_doc/_search

    "query": {
        "match": {
            "lastname": {
                "query":    "lopez",
                "analyzer": "my_analyzer" 
            }
        }
    }
}

Please let me know what is wrong?

2

Welcome!

You should define the analyzer in the mapping. In fact you should define a mapping.

Try this:

DELETE /phonetic_sample
PUT /phonetic_sample
{
  "settings": {
    "index": {
      "analysis": {
        "analyzer": {
          "my_analyzer": {
            "tokenizer": "standard",
            "filter": [
              "lowercase",
              "my_metaphone"
            ]
          }
        },
        "filter": {
          "my_metaphone": {
            "type": "phonetic",
            "encoder": "metaphone",
            "replace": false
          }
        }
      }
    }
  },
  "mappings": {
    "properties": {
      "firstname": {
        "type": "text",
        "analyzer": "my_analyzer"
      },
      "lastname": {
        "type": "text",
        "analyzer": "my_analyzer"
      }
    }
  }
}
PUT /phonetic_sample/_doc/1
{
  "firstname": "cindy",
  "lastname": "lopes"
}
GET /phonetic_sample/_search
{
  "query": {
    "match": {
      "lastname": {
        "query": "lopez"
      }
    }
  }
}
3

Thank you! It works now. Can you please advise how I can search same field with different analyzers like phonetic and synonym if explicit mapping of analyzer is needed?

4

Not the exact answer but you can get some ideas from this script:

HTH

5

Thank you, it is really helpful!

6

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