1.1 - 8.10 - Sparse Tables and Dense Tables - Teradata Vantage

Teradata Vantage™ - Machine Learning Engine Analytic Function Reference

Product
Teradata Vantage
Release Number
1.1
8.10
Release Date
October 2019
Content Type
Programming Reference
Publication ID
B700-4003-079K
Language
English (United States)

A sparse table allows a function to process more attributes than the database can support as columns; however, algorithms usually perform more efficiently if the input is a dense table.

Pivoting (ML Engine) and Unpivoting (ML Engine) functions convert from one to the other.