ST_SRID

Introduced or updated: v1.2.458

Returns the SRID (spatial reference system identifier) of a GEOMETRY object.

Syntax

ST_SRID(<geometry>)

Arguments

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

Return Type

INT32.

note

If the Geometry don't have a SRID, a default value 4326 will be returned.

Examples

SELECT
  ST_SRID(
    TO_GEOMETRY(
      'POINT(-122.306100 37.554162)',
      1234
    )
  ) AS pipeline_srid;

┌───────────────┐
│ pipeline_srid │
├───────────────┤
│          1234 │
└───────────────┘

SELECT
  ST_SRID(
    ST_MAKEGEOMPOINT(
      37.5, 45.5
    )
  ) AS pipeline_srid;

┌───────────────┐
│ pipeline_srid │
├───────────────┤
│          4326 │
└───────────────┘