ST_CompactnessRatio computes the perimeter of a circle whose area is equal to the given
POLYGON’s area, and returns the ratio of this computed perimeter to the given
ST_CompactnessRatio returns the square root of the
POLYGON’s area divided by the area of the circle with circumference equal to the
Note: This uses the 2D perimeter/area of the
This function accepts only
Note: In this example, both geometries have a perimeter equal to 24.