Supported Window Types | User-Defined Aggregate Functions | Teradata Vantage - Supported Window Types - Advanced SQL Engine - Teradata Database

SQL External Routine Programming
Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Published
July 2021
Language
English (United States)
Last Update
2021-07-27
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B035-1147
lifecycle
previous
Product Category
Teradata Vantage™

You can apply a window specification to an aggregate function. The following window types are supported for user-defined aggregate functions.

Window Type Aggregation Group Supported Partitioning Strategy
Reporting window ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING Hash partitioning
Cumulative window
  • ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
  • ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
 Hash partitioning
Moving window
  • ROWS BETWEEN value PRECEDING AND CURRENT ROW
  • ROWS BETWEEN CURRENT ROW AND value FOLLOWING
  • ROWS BETWEEN value PRECEDING AND value FOLLOWING
  • ROWS BETWEEN value PRECEDING AND value PRECEDING
  • ROWS BETWEEN value FOLLOWING AND value FOLLOWING
 Hash partitioning and range partitioning