This section describes any special notes about SQL Anywhere support of spatial data including unsupported features and notable behavioral differences with other database products.
Geographies and geometries Some vendors distinguish spatial objects by whether they are geographies (pertaining to objects on a round-Earth) or geometries (objects on a plane or a flat-Earth). In SQL Anywhere, all spatial objects are considered to be geometries, and the object's SRID indicates whether it is being operated on in a round-Earth or flat-Earth (planar) spatial reference system.
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