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 references to a component geometry

  • path[] - a 1-dimensional integer array that defines the navigation path within the dumped geometry to the geom component. The path array starts at 1 (e.g. 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.

See Also

Section 9.6, “PostGIS Geometry / Geography / Raster Dump Functions”