Optimizer Chooses Expensive Index Full Scan over Index Fast Full Scan or Full Table Scan from 12.1

(Doc ID 2382922.1)

Last updated on APRIL 14, 2018

Applies to:

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

Symptoms

Changes

Upgrading the Database to 12.1 or higher.
Changes to hardware like disk storage etc.

Cause

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