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Row movement not working in partitioned table based on virtual columns (Doc ID 953159.1)

Last updated on MARCH 10, 2020

Applies to:

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


New 11g feature partitioning on virtual columns is not working properly.

The row movement when data is changed is not being performed.

This is only being reported on partitions based on virtual columns, causing row movement to not be moved and, as per partition pruning, returning wrong results

Problem reproduces consistently, despite depending on the number of columns and position of virtual one, it may report correct results.

As it can be seen on this test:

ROWID hasn't change (so no row movement happened) and, even more critical,
selecting from virtual column (n2) is returning wrong data.


This behavior is not reproducing for partitions based on "real" columns, only on virtual ones (which is a new feature in Oracle 11g)


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