1Closest Point - two pointZMs
2:memory: #use in-memory database
3SELECT AsText(ClosestPoint(GeomFromText('POINTZM(1 2 0 4)'), GeomFromText('POINTZM(4 6 1 5)')));
41 # rows (not including the header row)
51 # columns
6AsText(ClosestPoint(GeomFromText('POINTZM(1 2 0 4)'), GeomFromText('POINTZM(4 6 1 5)')))
7POINT ZM(1 2 0 0)
8
9