ST_Geometry Type Casts | Geospatial Data Types | Teradata Vantage - 17.10 - Casts - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - Geospatial Data Types

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1181-171K
Language
English (United States)
The 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.