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Posted to jira@arrow.apache.org by "Michal Nowakiewicz (Jira)" <ji...@apache.org> on 2021/05/19 23:35:00 UTC

[jira] [Created] (ARROW-12830) [C++][Compute] Make GroupBy optimizations work on Big Endian architecture

Michal Nowakiewicz created ARROW-12830:
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             Summary: [C++][Compute] Make GroupBy optimizations work on Big Endian architecture
                 Key: ARROW-12830
                 URL: https://issues.apache.org/jira/browse/ARROW-12830
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
    Affects Versions: 4.0.0
            Reporter: Michal Nowakiewicz
             Fix For: 5.0.0


This is related to ARROW-12010, which introduces optimized group by implementation.
On s390x (big endian architecture) the code hangs in unit tests ([https://travis-ci.com/github/apache/arrow/jobs/506281680).]
Currently this implementation is disabled on big endian and the alternative, earlier, implementation is used instead, but at some point we will stop maintaining both and switch to a single implementation, which requires fixing this issue.



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