Description

geography is a spatial data type used to represent a feature in geodetic coordinate systems. Geodetic coordinate systems model the earth using an ellipsoid.

Spatial operations on the geography type provide more accurate results by taking the ellipsoidal model into account.

Casting Behavior

This table lists the automatic and explicit casts allowed for this data type:

See Also

Section 4.3, “Geography Data Type”, Section 15.4, “PostGIS Geography Support Functions”