Geography Markup Language (GML) format
The Geography Markup Language (GML) is an XML encoding for geographic
information defined by the OpenGIS Consortium Geography Markup Language V2
specification.
Several functions are available in the databast to generate geometries from data in Geography Markup Language(GML) format.
For more details about this OpenGIS Consortium specification, see OpenGIS
Geography Markup Language (GML) Encoding Standard
at http://www.opengeospatial.org/standards/gml.