1interpolate point - basic lineZ 2:memory: #use in-memory database 3SELECT AsText(Line_Interpolate_Point(GeomFromText('LINESTRINGZ(0 0 4, 10 6 14)'), 0.5)) 41 # rows (not including the header row) 51 # columns 6AsText(Line_Interpolate_Point(GeomFromText('LINESTRINGZ(0 0 4, 10 6 14)'), 0.5)) 7POINT Z(5 3 9)