What does it Mean if Disabling an Optimizer Specific Parameter Avoids a Performance Problem Detected After an Upgrade?
(Doc ID 1507909.1)
Last updated on JUNE 15, 2021
Applies to:Oracle Database - Enterprise Edition - Version 10.1.0.2 and later
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
Outline how changing optimizer parameters that control new features may be an indication of statistics problems rather than problems with the feature.
Users who have upgraded and encounter performance issues.
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