Elasticsearch Search Improvements

Jim Ferenczi

Principal Software Engineer

Elastic

Lee Hinman

Senior Software Engineer

Elastic

Nick Knize

Geospatial Software Engineer

Elastic

Let's talk about search improvements coming soon to an Elasticsearch near you!

Range Fields:

Want to create a global television guide to find broadcasts airing during certain time periods? Thanks to recent advancements in Lucene this desire is now a reality.

Removing the _all field:

The _all field can be either a boon or a burden. Come hear about why the _all field is going away and what it's being replaced with!

Unified Highlighter:

Starting in 5.3, a fourth highlighter called `unified` is available in Elasticsearch.

This highlighter has landed from Lucene with a goal in mind: he wants to rule them all ! We’ll see how and why this highlighter can advantageously replace your highlighter of choice.

The Synonym Graph Filter:

Multi-term synonyms have long been buggy in Lucene and Elasticsearch, but this issue is now fixed thanks to the addition of the new synonym_graph token filter, along with support for graph token streams in query parsers.