CODEWITHSUNDEEP
jakarta-eeelasticsearchspring-data-elasticsearch
Ludovic yrvurb
Ludovic yrvurb

Reputation: 3

Elasticsearch match_phrase_query with space don't work

I have a problem when i make a match_phrase_query with a string containing space, but not always =/

3 examples :

1/

  {
    "query" : {
              "match_phrase_prefix" : {
                "username" : {
                  "query":"maury"
                }
              }
    }
}

This first example works and give me results.

2/

  {
    "query" : {
              "match_phrase_prefix" : {
                "username" : {
                  "query":"maury chelsea"
                }
              }
    }
}

This second example, with full name works too.

3/

  {
    "query" : {
              "match_phrase_prefix" : {
                "username" : {
                  "query":"maury ch"
                }
              }
    }
}

This exemple didn't work, i have no result return. I didn't understand because it's working with 1 word, and 2 words, with the 2nd word having minimum 3-4 characters, depending of the name of the person i search.

Have you already encounter this problem ?

Thanks you, Ludovic

Upvotes: 0

Views: 129

Answers (1)

Val
Val

Reputation: 217274

This is because you have a lot of terms starting with ch. Try adding the max_expansions parameter (which defaults to 50) and increase it to (e.g.) 100 to see if you get a result or not. 

  {
    "query" : {
              "match_phrase_prefix" : {
                "username" : {
                  "query":"maury ch",
                  "max_expansions": 100     <--- add this
                }
              }
    }
}

The official doc explains why you're running into this issue.

Upvotes: 1

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