Will rounding lat / lng in geo_points result in better performance?

Elastic Stack Elasticsearch
1

I have a geo_point location field on every document. Some of these are pretty high precision and we do a lot of geo_polygon filters. For our use case, I don't need precision over 4 decimal places. Will rounding these before creating the document result in any performance improvement?

For instance, [-73.986421834829, 40.7253832828] will change to [-73.9864, 40.7254]

I'm on ES 2.4 (but we are looking to move to ES 5).

2

It should, yes.

3

Thanks! Can you provide any details on why or in what way?

4

Because you need to do less work to get a match.

5

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