2.2.1.19 GeographyPoint
The GeographyPoint type represents a single position in a geographic (round-earth) coordinate system. GeographyPoint is not equality comparable, so it cannot be used in keys. The meaning of a GeographyPoint is as the meaning of Point in the OGC Simple Features specification ([OGC-SFACA/1.2.1] section 6.1.4), but for ellipsoidal coordinates.