PostGIS
Description
geometry_dump is a
composite data
type containing the fields:
-
geom- a geometry representing a component of the dumped geometry. The geometry type depends on the originating function. -
path[]- an integer array that defines the navigation path within the dumped geometry to thegeomcomponent. The path array is 1-based (i.e.path[1]is the first element.)
It is used by the ST_Dump* family of functions as an output type to
explode a complex geometry into its constituent parts.