ST_NumPoints

Introduction: Returns number of points in a LineString

!!!note If any other geometry is provided as an argument, an IllegalArgumentException is thrown. Example: SELECT ST_NumPoints(ST_GeomFromWKT('MULTIPOINT ((0 0), (1 1), (0 1), (2 2))'))

Output: `IllegalArgumentException: Unsupported geometry type: MultiPoint, only LineString geometry is supported.`

Format: ST_NumPoints(geom: Geometry)

Return type: Integer

Since: v1.4.1

SQL Example

SELECT ST_NumPoints(ST_GeomFromText('LINESTRING(0 1, 1 0, 2 0)'))

Output:

3