Crea un quadrato da una diagonale.
make_square(point1,point2…)
point1 Primo punto del poligono regolare point2 Secondo punto
geom_to_wkt(make_square( make_point(0,0), make_point(5,5))) → 'Polygon ((0 0, -0 5, 5 5, 5 0, 0 0))'
geom_to_wkt(make_square( make_point(5,0), make_point(5,5))) → 'Polygon ((5 0, 2.5 2.5, 5 5, 7.5 2.5, 5 0))'
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