My Oracle Support Banner

Oracle System Generated Virtual Columns despite 'AUTO_STAT_EXTENSIONS' SET to OFF (Doc ID 3080056.1)

Last updated on APRIL 03, 2025

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Oracle Cloud Infrastructure - Exadata Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Gen 2 Exadata Cloud at Customer - Version All Versions and later
Information in this document applies to any platform.

Symptoms

System-generated virtual columns exist only in the PROD environment, despite similar table structures and usage in lower environments.

Extended stats were present in PROD and responsible for the virtual columns ( with SYSxxx)  but not it lower environment despite AUTO_STAT_EXTENSIONS was OFF .

Changes

 N/A

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Symptoms
Changes
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.