pggeodb.nancy.inra.fr/db_robot - db_robot on pggeodb.nancy.inra.fr

Function: st_pointn

Schema

public

Owner

albenard

Descriptions

args: a_linestring, n - Return the Nth point in the first LineString or circular LineString in the geometry. Negative values are counted backwards from the end of the LineString. Returns NULL if there is no linestring in the geometry.

Options

Definition

CREATE OR REPLACE FUNCTION public.st_pointn (
 public.geometry,
 integer
)
RETURNS public.geometry AS
'$libdir/postgis-2.3', 'LWGEOM_pointn_linestring'
LANGUAGE 'c'
IMMUTABLE
RETURNS NULL ON NULL INPUT
SECURITY INVOKER
COST 1;

COMMENT ON FUNCTION public.st_pointn(public.geometry, integer)
IS 'args: a_linestring, n - Return the Nth point in the first LineString or circular LineString in the geometry. Negative values are counted backwards from the end of the LineString. Returns NULL if there is no linestring in the geometry.';

This file was generated with SQL Manager for PostgreSQL (www.pgsqlmanager.com) at 26/02/2014 11:51