ST_SRID

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

Syntax

ST_SRID(<geometry_or_geography>)

Arguments

Return Type

INT32.

Examples

GEOMETRY 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 │
├───────────────┤
│             0 │
└───────────────┘

GEOGRAPHY examples

SELECT
  ST_SRID(
    ST_GEOGFROMWKT(
      'POINT(1 2)'
    )
  ) AS pipeline_srid;

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