16.20 - Casts - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ Geospatial Data Types

Teradata Database
Teradata Vantage NewSQL Engine
Release Number
Release Date
March 2019
Content Type
Programming Reference
Publication ID
English (United States)
Teradata Database implements cast functionality that allows data type conversions between the following types:
  • ST_Geometry and VARCHAR(64000)
  • ST_Geometry and CLOB

To cast a VARCHAR or CLOB to an ST_Geometry type, the VARCHAR or CLOB data must use the WKT format of any of the ST_Geometry subtypes. For example:

   INSERT INTO sample_shapes
      VALUES (1001, CAST('LINESTRING(1 1, 2 2, 3 3)' AS ST_Geometry));

For more information on the WKT format of the ST_Geometry type, see Well-Known Text Format.