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Performance Degradation of DMLs after Creating a 'PARTITION BY REFERENCE' Table. (Doc ID 1064364.1)

Last updated on MARCH 10, 2020

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.1]
Oracle Database Cloud Schema Service - Version N/A 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
Information in this document applies to any platform.
Reviewed on 22-JUL-2011.


With the presence of a "PARTITION BY REFERENCE" table, inserts into the corresponding parent table take longer.  

For example, if a second table exists "test_A " that has a "reference partition" to the parent table "test" then the inserts to the parent table are 20 times longer. 

Dropping the partition by reference table (test_A) leads to insert into parent table working fine.



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