count(EX_Extent.description + EX_Extent.geographicElement).gt.0
http://standards.iso.org/iso/19112/ed-2/en/
http://standards.iso.org/iso/19112/ed-2/en/
http://standards.iso.org/iso/19112/ed-2/en/
http://standards.iso.org/iso/19112/ed-2/en/
http://standards.iso.org/iso/19112/ed-2/en/
http://standards.iso.org/iso/19112/ed-2/en/
http://standards.iso.org/iso/19112/ed-2/en/