17.10 - Usage Notes - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - SQL External Routine Programming

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1147-171K
Language
English (United States)
When developing a window aggregate function, be aware of the following:
  • When specifying the return type of the function, you should consider the allowable window sizes and select an appropriate return data type to avoid overflows.
  • Vantage does not validate if a window aggregate UDF is used in a specific window type, so you may want to include window type checking code into your function.