Computes a Geometry representing the closure of the point-set of the points contained in first Geometry that are not contained in the second Geometry. If the result is empty, it is an atomic geometry with the dimension of the left-hand input.

Ports

Input Port

0   Table containing two geometry columns in GeoJSON format with other attributes. The geometry column name should be prefixed with “the_geom”.

Output Port

0   Table containing a single geometry column after computing row-wise difference of geometries. The geometry column name is prefixed with “the_geom”.

Further Details


Type

Processing

Related functions

See related functions in JTS ST_Difference.