ST_ASGEOJSON

Introduced or updated: v1.2.427

Converts a GEOMETRY or GEOGRAPHY object into a GeoJSON representation.

Syntax

ST_ASGEOJSON(<geometry_or_geography>)

Arguments

Arguments	Description
<geometry_or_geography>	The argument must be an expression of type GEOMETRY or GEOGRAPHY.

Return Type

Variant.

Examples

GEOMETRY examples

SELECT
  ST_ASGEOJSON(
    ST_GEOMETRYFROMWKT(
      'SRID=4326;LINESTRING(400000 6000000, 401000 6010000)'
    )
  ) AS pipeline_geojson;

┌─────────────────────────────────────────────────────────────────────────┐
│                             pipeline_geojson                            │
├─────────────────────────────────────────────────────────────────────────┤
│ {"coordinates":[[400000,6000000],[401000,6010000]],"type":"LineString"} │
└─────────────────────────────────────────────────────────────────────────┘

GEOGRAPHY examples

SELECT
  ST_ASGEOJSON(
    ST_GEOGFROMWKT(
      'SRID=4326;POINT(-122.35 37.55)'
    )
  ) AS pipeline_geojson;

╭────────────────────────────────────────────────╮
│                pipeline_geojson                │
├────────────────────────────────────────────────┤
│ {"coordinates":[-122.35,37.55],"type":"Point"} │
╰────────────────────────────────────────────────╯```