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Hash Partition Does Not Perform An Uniform Distribution (Doc ID 1559357.1)

Last updated on SEPTEMBER 20, 2022

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.2]
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.
Reviewed 04-Mar-2015.


While using a hash partition, it does not distribute data evenly. For example, a partitioned table with 7 partitions and 14 sub partitions,
but the data is placed into subpartition 7 and 8 by a rate of 2x more.


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