How to Drop System-Created Column Groups and their Statistics (Doc ID 2255331.1)

Last updated on APRIL 19, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Goal

You may encounter column groups, created automatically by the cost-based optimizer, which you would prefer to drop (perhaps they are unnecessary.) This note explains how to drop system-created column groups and their statistics.

Solution

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