Introduction: Return the maximum Y coordinate of a Box2D value. This is the same function as the Geometry-input form, overloaded to accept a Box2D.
Format: ST_YMax(box: Box2D)
Return type: Double
Since: v1.9.1
SQL Example
SELECT ST_YMax(ST_MakeBox2D(ST_Point(0.0, 0.0), ST_Point(10.0, 20.0)))Output:
20.0
Returns NULL on NULL input.