January 2016
Intermediate to advanced
240 pages
4h 42m
English
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Working with geo-point data
Geo-points are single location points defined by a latitude-longitude pair on the surface of the earth. Using geo-points you can do the following things:
- Calculate the distance between two points
- Find the document that falls in a specified rectangular area
- Sort documents based on distance and score results based on it
- Create clusters of geo-points using aggregations
Mapping geo-point fields
Unlike all the data types in Elasticsearch, geo-point fields can't be determined dynamically. So, you have to define the mapping in advance before indexing data. The mapping for a geo-point field can be defined in the following format:
"location": {
"type": "geo_point"
}A geo_point mapping indexes a single field (the location in our example) ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.