17.05 - COLLECT STATISTICS (QCD Form) Collects New Statistics Even If Statistics Exist In the Data Dictionary or QCD - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Manipulation Language

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Published
January 2021
Language
English (United States)
Last Update
2021-01-22
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COLLECT STATISTICS (QCD Form) always collects its own fresh statistics on candidate index columns, even if a statistical profile of the specified columns or index columns already exists in the data dictionary or QCD for table_name, to ensure that index analyses are always performed using current statistics.

Fresh statistics are also collected whenever you perform an INSERT EXPLAIN request and specify the WITH STATISTICS clause. See INSERT EXPLAIN for more information.