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)
Since: v1.4.1
SQL Example
SELECT ST_NumPoints(ST_GeomFromText('LINESTRING(0 1, 1 0, 2 0)'))
Output:
3