16.20 - Example: Function Mapping Definition with IN TABLE, OUT TABLE, and Parameters Options - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Syntax and Examples

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Content Type
Programming Reference
Publication ID
B035-1144-162K
Language
English (United States)
Last Update
2019-05-24

Below is the function mapping definition glm for the function glm located on the server coprocessor.

During function processing, you can specify the following options in the SELECT FROM table operator USING clause:
  • InputTable as an input table correlation name.
  • OutputTable as an output table.
  • Parameters including ColumnNames, CategoricalColumns, Family, Link, Weight, Threshold, MaxIterNum, Intercept, and Step.
CREATE FUNCTION MAPPING appl_view_db.glm 
   FOR glm SERVER coprocessor 
   MAP JSON ( '{ "function_version": "1.0" }') 
   USING 
   InputTable IN TABLE,  
   OutputTable OUT TABLE,  
   ColumnNames, CategoricalColumns, Family, 
   Link, Weight, Threshold, MaxIterNum, Intercept, Step;