ElasticSearch Cookbook - Second Edition

Chapter 6. Aggregations

In this chapter, we will cover the following topics:

• Executing an aggregation
• Executing the stats aggregation
• Executing the terms aggregation
• Executing the range aggregation
• Executing the histogram aggregation
• Executing the date histogram aggregation
• Executing the filter aggregation
• Executing the global aggregation
• Executing the geo distance aggregation
• Executing the nested aggregation
• Executing the top hit aggregation

Introduction

In developing search solutions, not only are results important, but they also help us to improve quality and search focus.

ElasticSearch provides a powerful tool to achieve these goals: aggregations.

The main usage of aggregations is to provide additional data to the search results to improve their quality ...