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Mastering Elasticsearch 5.x - Third Edition

You're reading from  Mastering Elasticsearch 5.x - Third Edition

Product type Book
Published in Feb 2017
Publisher Packt
ISBN-13 9781786460189
Pages 428 pages
Edition 3rd Edition
Languages

Table of Contents (20) Chapters

Mastering Elasticsearch 5.x - Third Edition
Credits
About the Author
Acknowledgements
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
Revisiting Elasticsearch and the Changes The Improved Query DSL Beyond Full Text Search Data Modeling and Analytics Improving the User Search Experience The Index Distribution Architecture Low-Level Index Control Elasticsearch Administration Data Transformation and Federated Search Improving Performance Developing Elasticsearch Plugins Introducing Elastic Stack 5.0

Multimatch types


In this section, we will cover the different flavors of multi-match queries, which are mainly controlled using the type property. The following are the available types:

  • The best_fields type

  • The most_fields type

  • The cross_fields type

  • The phrase type

  • The phrase_prefix type

Best fields matching

To use the best_fields type matching, one needs to set the type property of the multi_match query to the best_fields query. This type of multimatching will generate a match query for each field specified in the fields property and it is best used for searching for multiple words in the same best matching field. For example, let's look at the following query:

curl -XGET 'localhost:9200/library/_search?pretty' -d '{ 
  "query" : { 
    "multi_match" : { 
      "query" : "complete conan doyle", 
      "fields" : [ "title", "author", "characters" ], 
      "type" : "best_fields", 
      "tie_breaker" : 0.8 
    } 
  } 
}'

The preceding query would be translated into a query similar to the following...

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