Multi_match query

Elastic Stack Elasticsearch
1

I have the following query to match firstname or lastname

let searchQuery = {
          "query": {
            "bool": {
              "must": {
                  "multi_match": {
                    "query":      key,
                    "fields": ["firstName", "lastName"]
                  }
                },
              "filter": {
                "term": {
                  "listId": self.listId
                }
              }
            }       
          }
};

Say, if the name is Brian Adams, it matches for Brian or Adams. I want to match it partially also . It should match for Bri . or Ada
Can anyone suggest change in the query to achieve the same?

2

There are a few ways to achieve this. One good way is to use NGram Tokenizer for these fields.

3

Probably edge ngrams for your specific example. And depending on your coverage vs accuracy tolerance you could use the snowball analyser. Then throw in a frequency cutover to your match query to speed up processing.

1 Like
4

Thank you.

can we use Ngram tokenizer for even not_analysed fields, specifying analyser at search time?
Can you please share an example?

5

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