Geohash for spatial index and search – GSWB
Geohash seems to be useful in building simple spatial index and spatial search. In a typical geospatial application, we often rely on spatial databases (e.g., MySQL Spatial and Oracle Spatial) to provide spatial index and search. However, this imposes a significant amount of overhead during the development and deployment. This is where Geohash can help. If the spatial operations in the application are relatively simple (e.g., only involve points), Geohash provides an easy solution to build an index of locations and allow them to be searched.