David Li created ARROW-14183:
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Summary: [C++] Improve select_k_unstable performance
Key: ARROW-14183
URL: https://issues.apache.org/jira/browse/ARROW-14183
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: David Li
Recently {{sort_indices}} was optimized and refactored in ARROW-14165. One of
those optimizations could also be applied to {{select_k_unstable}}'s
implementation.
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