16.20 - Hash Indexes Are Maintained by Teradata Database - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Detailed Topics

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Release Date
March 2019
Content Type
Programming Reference
Publication ID
B035-1184-162K
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.