弹性搜索match_phrase +模糊性

Question

I am using ElasticSearch and I am trying to implement match_phrase/string + fuzziness but it seems like it is impossible (not that much examples online, no such cases in the documentation).

What I need: phrase/string matching + fuzziness + slop based on every value of the field individually.

What I've tried so far (and I still don't have a solution I need):

query_string - it has fuzziness and slop included. However, it gathers a string through all of the values of the field through one document.

match_phrase - it has slop included, but there is no fuzziness. What is good - it looks for a phrase match in at least one of the values of the field, not gathers the string through all the values of the document's field.

What I need:

Anybody has experience on phrase matching including fuzziness on ElasticSearch?

Thanks in advance.

Answer 1

You can make use of Span Queries for this as I've mentioned in the links in the comment section of the question.

What you further looking for, is a way to control fuzziness using Span Queries. I've taken an example from this SOF answer and rewrote the query as you wanted to manage fuzziness.

Query

POST <your_index_name>
{  
   "query":{  
      "bool":{  
         "must":[  
            {  
               "span_near":{  
                  "clauses":[  
                     {  
                        "span_multi":{  
                           "match":{  
                              "fuzzy":{  
                                 "name":{  
                                    "value":"champions",
                                    "fuzziness":2
                                 }
                              }
                           }
                        }
                     },
                     {  
                        "span_multi":{  
                           "match":{  
                              "fuzzy":{  
                                 "name":{  
                                    "value":"league",
                                    "fuzziness":2
                                 }
                              }
                           }
                        }
                     }
                  ],
                  "slop":0,
                  "in_order":false
               }
            }
         ]
      }
   }
}

Hope this helps!