Name
ST_CoordDim — Return the coordinate dimension of a geometry.
Synopsis
integer ST_CoordDim(geometry geomA);
Description
Return the coordinate dimension of the ST_Geometry value.
This is the MM compliant alias name for ST_NDims
This method implements the OGC Simple Features
Implementation Specification for SQL 1.1.
This method implements the SQL/MM specification.
SQL-MM 3: 5.1.3
This method supports Circular Strings and Curves.
This function supports 3d and will not drop the z-index.
This function supports Polyhedral surfaces.
This function supports Triangles and Triangulated Irregular Network Surfaces (TIN).
Examples
SELECT ST_CoordDim('CIRCULARSTRING(1 2 3,1 3 4,5 6 7,8 9 10,11 12 13)');
3
SELECT ST_CoordDim(ST_Point(1, 2));
2