3. Not Only Full Text Search | Mastering Elasticsearch

Controlling multimatching

Until Elasticsearch 1.1, we had limited control over the multi_match query. Of course, we had the possibility to specify the fields we want our query to be run against; we could use disjunction max queries (by setting the use_dis_max property to true). Finally, we could inform Elasticsearch about the importance of each field by using boosting. Our example query run against multiple fields could look as follows:

curl -XGET 'localhost:9200/library/_search?pretty' -d '{
 "query" : {
  "multi_match" : {
   "query" : "complete conan doyle",
   "fields" : [ "title^20", "author^10", "characters" ]
  }
 }
}'

A simple query that will match documents having given tokens in any of the mentioned fields. In addition to that required query, the title field is more important than the author field, and finally the characters field.

Of course, we could also use the disjunction max query:

curl -XGET 'localhost:9200/library/_search?pretty' -d '{
 "query" : {
  "multi_match" : {
   "query...

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Mastering Elasticsearch - Second Edition

By : Marek Rogozinski

Mastering Elasticsearch

By: Marek Rogozinski

Overview of this book

Controlling multimatching

Mastering Elasticsearch - Second Edition

By : Marek Rogozinski

Mastering Elasticsearch

By: Marek Rogozinski

Overview of this book

Controlling multimatching

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