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Function Based Index on SUBSTR Not Used When Cursor_Sharing=Force (Doc ID 2276684.1)

Last updated on MAY 07, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 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 Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.

Symptoms



Changes

Max_string_size=extended was added.


Old function based indexes cannot be created after upgrade to max_string_size=extended because of ORA-1450 <Document 136158.1>.  So indexes must be created on substring (substr(<fnc>,1,n)).

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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