Implementation of Geohashencode and Geohashdecode Functions

Why it matters

These functions provide users with efficient tools for spatial data processing by converting latitude and longitude values into geohash strings and vice versa. This enables easier spatial indexing, querying, and storage of location data within ClickHouse.

How to use it

Use the geohashEncode(latitude, longitude, precision) function to convert geographic coordinates into a geohash string. Use the geohashDecode(geohash_string) function to retrieve the original coordinates from a geohash string.