Collecting Statistics on NUSIs Defined Using ALL and ORDER BY - Analytics Database - Teradata Vantage

SQL Data Definition Language Detailed Topics

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
2023-07-11
dita:mapPath
vuk1628111288877.ditamap
dita:ditavalPath
qkf1628213546010.ditaval
dita:id
B035-1184
lifecycle
latest
Product Category
Teradata Vantage™

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.