Geospatial UDFs - Advanced SQL Engine - Teradata Database

Geospatial Data Types

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
17.00
Published
June 2020
Language
English (United States)
Last Update
2021-01-23
dita:mapPath
vci1556127188517.ditamap
dita:ditavalPath
lze1555437562152.ditaval
dita:id
B035-1181
lifecycle
previous
Product Category
Teradata Vantageā„¢

This section describes the Teradata Database geospatial UDFs. These are geospatial functions that have been implemented by Teradata using the Teradata Database user-defined function infrastructure.

For best performance, follow these practices:
  • When ST_Geometry defines an instance method that performs the same functionality as a geospatial UDF, use the instance method instead of the UDF.
  • When a geospatial system function exists that performs the same functionality as a geospatial UDF, use the system function instead of the UDF.

If your SQL request specifies the name of a geospatial system function that is also the name of a geospatial UDF, Teradata Database calls the system function. To call the UDF, qualify the name of the UDF with the SYSSPATIAL database name.