説明

ST_Geometry値の座標次元を返します。

この関数はST_NDimsのMM対応の別名です。

This method implements the OpenGIS 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).

例

SELECT ST_CoordDim('CIRCULARSTRING(1 2 3, 1 3 4, 5 6 7, 8 9 10, 11 12 13)');
                        -- 結果 --
                                3

                                SELECT ST_CoordDim(ST_Point(1,2));
                        -- 結果 --
                                2

                

関連情報

ST_NDims