GROUP BY and DISTINCT - Analytics Database - Teradata Vantage

SQL Data Manipulation Language

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-04-05
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lifecycle
latest
Product Category
Teradata Vantage™

For cases when the GROUP BY is semantically equivalent to DISTINCT, the optimizer makes a cost-based decision to eliminate duplicates either by way of a combined sort and duplicate elimination or an aggregation step.