17.10 - Collecting Statistics on NUSIs Defined Using ALL and ORDER BY - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Detailed Topics

Advanced SQL Engine
Teradata Database
Release Number
Release Date
July 2021
Content Type
Programming Reference
Publication ID
English (United States)

When you use the ALL and ORDER BY keywords in a CREATE INDEX request, you should always collect statistics on the column on which the index is defined. This permits the Optimizer to more accurately compare the cost of using a NUSI-based access path with range or equality conditions on the sort key column.