ST_ASEWKT

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

SQL Syntax

ST_ASEWKT(<geometry>)

Arguments

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

Return Type

String.

SQL Examples

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

┌─────────────────────────────────────────────────────┐
│                    pipeline_ewkt                    │
├─────────────────────────────────────────────────────┤
│ SRID=4326;LINESTRING(400000 6000000,401000 6010000) │
└─────────────────────────────────────────────────────┘

SELECT
  ST_ASEWKT(
    ST_GEOMETRYFROMWKT(
      'SRID=4326;POINT(-122.35 37.55)'
    )
  ) AS pipeline_ewkt;

┌────────────────────────────────┐
│          pipeline_ewkt         │
├────────────────────────────────┤
│ SRID=4326;POINT(-122.35 37.55) │
└────────────────────────────────┘