[jira] [Created] (ARROW-18312) [C++] Optimize output sizes in segmented aggregation

[Yaron Gvili (Jira)]

Yaron Gvili created ARROW-18312:
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             Summary: [C++] Optimize output sizes in segmented aggregation
                 Key: ARROW-18312
                 URL: https://issues.apache.org/jira/browse/ARROW-18312
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Yaron Gvili


This is a [follow-up 
task|https://github.com/apache/arrow/pull/14352#discussion_r1019661909] for a 
currently pending PR.



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