Yibo Cai created ARROW-9873:
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Summary: [C++][Compute] Improve mode kernel for intergers within
limited value range
Key: ARROW-9873
URL: https://issues.apache.org/jira/browse/ARROW-9873
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Yibo Cai
Assignee: Yibo Cai
It's possible to improve mode kernel performance for integers within limited
value range by using a value indexed array instead of general hash table.
Similar trick is used in sorting kernel ARROW-1571.
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