ST_GeoHashID
Converts a GeoHash string into a bigint value to improve storage and query efficiency.
Syntax
bigint ST_GeoHashID(cstring geoHash);Parameters
| Parameter | Description |
|---|---|
geoHash | The GeoHash string to convert. Supports strings up to 11 characters. |
Description
ST_GeoHashID encodes a GeoHash string as a bigint integer. Storing geospatial locations as integers reduces storage overhead and speeds up indexing and spatial computations compared to string-based GeoHash values.
Examples
Convert a point geometry to a GeoHash string and then to a bigint ID:
SELECT ST_GeoHashID(ST_GeoHash(ST_GeomFromText('POINT(-115.172816 36.114646)'), 11)::cstring);Output:
2220678768189336756