ST_XMIN

Introduced or updated: v1.2.512

Returns the minimum longitude (X coordinate) of all points contained in the specified GEOMETRY object.

Syntax

ST_XMIN(<geometry>)

Arguments

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

Return Type

Double.

Examples

SELECT
  ST_XMIN(
    TO_GEOMETRY(
      'GEOMETRYCOLLECTION(POINT(180 10),LINESTRING(20 10,30 20,40 40),POINT EMPTY)'
    )
  ) AS pipeline_xmin;

┌───────────────┐
│ pipeline_xmin │
├───────────────┤
│            20 │
└───────────────┘

SELECT
  ST_XMIN(
    TO_GEOMETRY(
      'GEOMETRYCOLLECTION(POINT(40 10),LINESTRING(20 10,30 20,10 40),POLYGON((40 40,20 45,45 30,40 40)))'
    )
  ) AS pipeline_xmin;

┌───────────────┐
│ pipeline_xmin │
├───────────────┤
│            10 │
└───────────────┘