7.00.02 - nTree - Aster Analytics

Teradata Aster® Analytics Foundation User GuideUpdate 2

Product
Aster Analytics
Release Number
7.00.02
Published
September 2017
Content Type
Programming Reference
User Guide
Publication ID
B700-1022-700K
Language
English (United States)
Last Update
2018-04-17

The nTree function is a hierarchical analysis SQL-MapReduce function that can build and traverse tree structures on all worker machines. The function reads the data only once from the disk and creates the trees in memory.

The input data must be partitionable, and each partition must fit in memory. Each partition can consist of multiple trees of any size. The function provides different ways of handling cycles.