Teradata provides the ST_Geometry data type for creating and manipulating geometric shapes in the database. ST_Geometry is implemented as a user-defined type (UDT). ST_Geometry is an instantiable type within Teradata Database. (Teradata Database UDTs do not support inheritance or subtyping.) You can use ST_Geometry as the data type of a table column to represent most of the geospatial types specified in the standard.