fuzzy searching with query_string Elasticsearch

Question

i have a record saved in Elasticsearch which contains a string exactly equals to Clash of clans

now i want to search this string with Elasticsearch and i using this

{
    "query_string" : {
        "query" : "clash"
    }
}

its working perfectly but now if i write

"query" : "class"

it dont give me back any record so i realize i should use Fuzzy searching so i come to know that i can use fuzziness parameter with query_string so i did

{
    "query_string" : {
        "query" : "clas"
        "fuzziness":1
    }
}

but still elasticsearch is not returning anything! kindly help and i cant use Fuzzy query i just can use query_string. Thanks

score 24 · Accepted Answer · answered Oct 19 '15 at 23:10

24

You need to use the ~ operator to have fuzzy searching in query_string:

{
  "query": {
    "query_string": {
      "query": "class~"
    }
  }
}

answered Oct 19 '15 at 23:10

Andrei Stefan

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Thank you so much bro u r amazing ;) – maq Oct 20 '15 at 14:36
This worked for me, thanks. however i wonder if there is no other way because I'm passing the query from an HTTP parameter, so i think it can lead me to problems in the future (if the user adds ~ character at the end of the string). – Ivan Vilanculo Jan 16 '18 at 08:39
2

What if I have "query": `${search}*`? how to use fuzziness ? – Palaniichuk Dmytro Mar 13 '18 at 15:24
@PalaniichukDmytro Did you find the solution to this `${search}*`? – Saurabh Pakhare Feb 09 '20 at 09:58
* and ~ is not supported in the same query https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-query-string-query.html#avoid-widlcards-fuzzy-searches – aroundtheworld Dec 02 '21 at 05:22

fuzzy searching with query_string Elasticsearch

1 Answers1