ST_ASWKT

Converts a GEOMETRY object into a WKT(well-known-text) format representation.

SQL Syntax

ST_ASWKT(<geometry>)

Aliases

Arguments

ArgumentsDescription
<geometry>The argument must be an expression of type GEOMETRY.

Return Type

String.

SQL 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) │
└──────────────────────┘