16.20 - Casts - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ Geospatial Data Types

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Release Date
March 2019
Content Type
Programming Reference
Publication ID
B035-1181-162K
Language
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.