ST_CoordDim
Signature
INT ST_CoordDim(GEOMETRY geom)Description
Returns the dimension of the coordinates of geom.
Examples
SELECT ST_CoordDim('POINT(1 2)');
-- Answer: 2
SELECT ST_CoordDim('LINESTRING(0 0 0, 1 1 2)');
-- Answer: 3
SELECT ST_CoordDim('LINESTRING(1 1 1, 2 1 2, 2 2 3, 1 2 4, 1 1 5)');
-- Answer: 3
SELECT ST_CoordDim('MULTIPOLYGON(((0 0, 1 1, 0 1, 0 0)))');
-- Answer: 2