Elasticsearch spatial capabilities

The search servers such as Elasticsearch are usually looked at from the perspective of full-text searching. Elasticsearch, because of its marketing as being part of ELK (Elasticsearch, Logstash, and Kibana), is also highly known for being able to handle large amount of time series data. However, this is only a part of the whole view. Sometimes both of the mentioned use cases are not enough. Imagine searching for local services. For the end user, the most important thing is the accuracy of the results. By accuracy, we not only mean the proper results of the full-text search, but also the results being as near as they can in terms of location. In several cases, this is the same as a text search on geographical names such as cities or streets, but in other cases we can find it very useful to be able to search on the basis of the geographical coordinates of our indexed documents. And this is also a functionality that Elasticsearch is capable of handling.

With...