Returns the maximum Y-coordinate of the input Geometry object's bounding box.
Syntax
float ST_YMax(box3d aGeomorBox2DorBox3D);Parameters
Parameter Name | Description |
aGeomorBox2DorBox3D | A Box2D, Box3D, or geometry object. |
Description
The function parameter is of the box3d type. Automatic casting allows the function to process Box2D and geometry objects. The function does not support automatic casting for Box2D or geometry objects that are represented as strings.
The function supports 3D objects and preserves the z-coordinate.
The function supports circular strings and curves.
Examples
Default call:
SELECT ST_YMax('LINESTRING(0 1,2 3)'::geometry);
st_ymax
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3
(1 row)
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