geometry_dump — A composite type used to describe the parts of complex geometry.
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 the geom
component. 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.