CODEWITHSUNDEEP
elasticsearchhighlight
javad helali
javad helali

Reputation: 270

Configure Elasticsearch to not highlight stopwords

Is it possible to configure Elasticsearch not to highlight stopwords which occur alone in the text ?

For example in the following text from Wikipedia, I want to highlight "the lord of the rings", "rings", or "lord", but I don't want Elasticsearch to highlight "of" or "the" if they occur alone.

The Lord of the Rings is an epic high-fantasy novel written by English author J. R. R. Tolkien. The story began as a sequel to Tolkien's 1937 fantasy novel The Hobbit, but eventually developed into a much larger work. Written in stages between 1937 and 1949, The Lord of the Rings is one of the best-selling novels ever written, with over 150 million copies sold. The title of the novel refers to the story's main antagonist, the Dark Lord Sauron, who had in an earlier age created the One Ring to rule the other Rings of Power as the ultimate weapon ...

Upvotes: 2

Views: 815

Answers (1)

chengpohi
chengpohi

Reputation: 14227

You are looking for highlight_query:

  1. Use _analyze to analysis The Lord of the Rings to get words without stopwords
  2. Use highlight_queryto search with The Lord of the Rings and no stop words from 1.

maybe like:

GET /_search
{
    "query" : {
        "match": {
            "my_field": {
                "query": "The Lord of the Rings"
            }
        }
    },
    "highlight" : {
        "order" : "score",
        "fields" : {
            "my_field" : {
                "highlight_query": {
                    "bool": {
                        "should": {
                            "match_phrase": {
                                "content": {
                                    "query": "my words"
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}

Upvotes: 1

Related Questions