ST_GEOHASH

Return the geohash for a GEOMETRY object. A geohash is a short base32 string that identifies a geodesic rectangle containing a location in the world. The optional precision argument specifies the precision of the returned geohash. For example, passing 5 for `precision returns a shorter geohash (5 characters long) that is less precise.

SQL Syntax

ST_GEOHASH(<geometry> [, <precision>])

Arguments

ArgumentsDescription
geometryThe argument must be an expression of type GEOMETRY.
[precision]Optional. specifies the precision of the returned geohash, default is 12.

Return Type

String.

SQL Examples

SELECT
  ST_GEOHASH(
    ST_GEOMETRYFROMWKT(
      'POINT(-122.306100 37.554162)'
    )
  ) AS pipeline_geohash;

┌──────────────────┐
│ pipeline_geohash │
├──────────────────┤
│ 9q9j8ue2v71y     │
└──────────────────┘

SELECT
  ST_GEOHASH(
    ST_GEOMETRYFROMWKT(
      'SRID=4326;POINT(-122.35 37.55)'
    ),
    5
  ) AS pipeline_geohash;

┌──────────────────┐
│ pipeline_geohash │
├──────────────────┤
│ 9q8vx            │
└──────────────────┘