ST_Reverse

ST_Reverse reverses the order of the vertices for linear and areal geometries. For point or multipoint geometries, a copy of the original geometry is returned. For geometry collections, ST_Reverse reverses the order of the vertices for each of the geometries in the collection.

The dimension of the returned geometry is the same as that of the input geometry.

Syntax

ST_Reverse(geom)

Arguments

geom

A value of data type GEOMETRY or an expression that evaluates to a GEOMETRY type.

Return type

GEOMETRY

The spatial reference system identifier (SRID) of the returned geometry is the same as that of the input geometry.

If geom is null, then null is returned.

Examples

The following SQL reverses the order of the points in a linestring.

SELECT ST_AsEWKT(ST_Reverse(ST_GeomFromText('LINESTRING(1 0,2 0,3 0,4 0)', 4326)));

    st_asewkt
------------------------------------
  SRID=4326;LINESTRING(4 0,3 0,2 0,1 0)