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Real-time Materialized View QUERY REWRITE Does Not Use Result Cache After Row Update. (Doc ID 2408626.1)

Last updated on JANUARY 03, 2020

Applies to:

Oracle Database Exadata 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
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

NOTE: In the images and/or the document content below, the user information and data used represents fictitious data from the Oracle sample schema(s) or Public Documentation delivered with an Oracle database product. Any similarity to actual persons, living or dead, is purely coincidental and not intended in any manner.

 

Real-time Materialized View QUERY REWRITE uses Result Cache with table updates with insert and/or delete. However, it omits Result Cache from execution plan after rows is changed with update statement.

Is this an expected behavior ?

Example showing behavior:

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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