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Potential Ramifications of OPTIMIZER_INDEX_CACHING parameter (Doc ID 1474966.1)

Last updated on FEBRUARY 21, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.4 and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
A complex query got different execution plans between test and production environment. Statistics are the same in both environments.

Symptoms

Changes

SGA sizes differ considerably. Whereas in test SGA was only 3GB it was 30GB in production.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References

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