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Posted to dev@arrow.apache.org by "Yibo Cai (Jira)" <ji...@apache.org> on 2020/01/16 02:33:00 UTC

[jira] [Created] (ARROW-7587) [C++][Compute] Add Top-k kernel

Yibo Cai created ARROW-7587:
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             Summary: [C++][Compute] Add Top-k kernel
                 Key: ARROW-7587
                 URL: https://issues.apache.org/jira/browse/ARROW-7587
             Project: Apache Arrow
          Issue Type: New Feature
          Components: C++ - Compute
            Reporter: Yibo Cai
            Assignee: Yibo Cai


Add a kernel to get top k smallest or largest elements (indices).
std::paiital_sort should be a better solution than sorting everything then pick top k.



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