16.20 - Join Indexes - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantageâ„¢ SQL Fundamentals

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2019-05-02
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A join index is an indexing structure containing columns from one or more base tables and is generally used to resolve queries and eliminate the need to access and join the base tables it represents.

Teradata Database join indexes can be defined in the following general ways.
  • Simple or aggregate
  • Single-table or multitable
  • Hash-ordered or value-ordered
  • Complete or sparse

For details, see Join Indexes.