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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2018/02/25 18:33:00 UTC

[jira] [Created] (ARROW-2211) [C++] Use simpler hash functions for integers

Wes McKinney created ARROW-2211:
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             Summary: [C++] Use simpler hash functions for integers
                 Key: ARROW-2211
                 URL: https://issues.apache.org/jira/browse/ARROW-2211
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Wes McKinney
            Assignee: Wes McKinney


We are using a relatively complex hash function on 32- and 64-bit integers. A simpler hash with fewer CPU instructions should be sufficient for our needs



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