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

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1.0 to 11.2.0.4 [Release 11.2]
Information in this document applies to any platform.
Reviewed 04-Mar-2015.

Symptoms

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.

Cause

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