ST_XMAX

Introduced or updated: v1.2.458

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

Syntax

ST_XMAX(<geometry>)

Arguments

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

Return Type

Double.

Examples

SELECT
  ST_XMAX(
    TO_GEOMETRY(
      'GEOMETRYCOLLECTION(POINT(40 10),LINESTRING(10 10,20 20,10 40),POINT EMPTY)'
    )
  ) AS pipeline_xmax;

┌───────────────┐
│ pipeline_xmax │
├───────────────┤
│            40 │
└───────────────┘

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

┌───────────────┐
│ pipeline_xmax │
├───────────────┤
│            45 │
└───────────────┘