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Posted to issues@arrow.apache.org by "Yaron Gvili (Jira)" <ji...@apache.org> on 2022/09/07 11:11:00 UTC

[jira] [Created] (ARROW-17642) [C++] Add ordered aggregation

Yaron Gvili created ARROW-17642:
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             Summary: [C++] Add ordered aggregation
                 Key: ARROW-17642
                 URL: https://issues.apache.org/jira/browse/ARROW-17642
             Project: Apache Arrow
          Issue Type: New Feature
          Components: C++
            Reporter: Yaron Gvili
            Assignee: Yaron Gvili


{color:#000000}Ordered aggregation is similar to grouped aggregation except that one column in the grouping key is (known to be) ordered. The result of both types of aggregations is the same but the existence of an ordered column enables optimizing.{color}



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