13DDistance - two 3D linestring 2:memory: #use in-memory database 3SELECT ST_3DDistance(GeomFromText('LINESTRINGZ(0 0 1, 10 2 5)'), GeomFromText('LINESTRINGZ(0 2 3, 10 3 4)')); 41 # rows (not including the header row) 51 # columns 6ST_3DDistance(GeomFromText('LINESTRINGZ(0 0 1, 10 2 5)'), GeomFromText('LINESTRINGZ(0 2 3, 10 3 4)')); 71.262388:6 8 9