17.10 - Hash Indexes Are Maintained by Vantage - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Detailed Topics

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1184-171K
Language
English (United States)

Hash indexes are automatically maintained by the system when update operations, such as UPDATE, DELETE, or INSERT, are performed on columns in their underlying base tables that are also defined for the hash index. Additional steps are included in the execution plan to regenerate the affected portion of the stored result.