srowen commented on issue #25034: [SPARK-27560][Java API] Provide an hash partitioning method which supports seeding URL: https://github.com/apache/spark/pull/25034#issuecomment-507861921 I don't think I understand the purpose of this, from the JIRA. The same values will still hash to the same partition here. If you partition by a column and that column has all the same values, you will always get one partition.
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