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A comment on Show HN: ProximityHash – Geohashes in Proximity.

Re:Show HN: ProximityHash – Geohashes in Proximity by speeq on Wednesday June 07, 2017 @05:44PM (#14510100)
> data size reduces considerably, thereby improving speed and performance.

By how much? Could you please give us an example?

Would something like Redis' GEOHASH command be any faster if it used ProximityHash?

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Re:Show HN: ProximityHash – Geohashes in Proximity by ashwinnair on Friday June 09, 2017 @07:56AM (#14520757)
It's not ProximityHash that does the optimization. There's an option to use Georaptor which does the optimization. Please have a look at GeoRaptor (https://github.com/ashwin711/georaptor).

On your second question, it completely depends on the problem at hand. I have been using GEORADIUS on Redis for around a year now @ > 30k QPS. The case there is to find locations that are closest to our input. ProximityHash provides you all the geohashes in a circular area for which I haven't found a library yet. Most of them provide geohashes in a BoundingBox.

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