ST_ASWKT
Introduced or updated: v1.2.436
Converts a GEOMETRY object into a WKT(well-known-text) format representation.
Syntax
ST_ASWKT(<geometry>)
Aliases
Arguments
Arguments | Description |
---|---|
<geometry> | The argument must be an expression of type GEOMETRY. |
Return Type
String.
Examples
SELECT
ST_ASWKT(
ST_GEOMETRYFROMWKT(
'SRID=4326;LINESTRING(400000 6000000, 401000 6010000)'
)
) AS pipeline_wkt;
┌───────────────────────────────────────────┐
│ pipeline_wkt │
├───────────────────────────────────────────┤
│ LINESTRING(400000 6000000,401000 6010000) │
└─ ──────────────────────────────────────────┘
SELECT
ST_ASTEXT(
ST_GEOMETRYFROMWKT(
'SRID=4326;POINT(-122.35 37.55)'
)
) AS pipeline_wkt;
┌──────────────────────┐
│ pipeline_wkt │
├──────────────────────┤
│ POINT(-122.35 37.55) │
└──────────────────────┘