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Posted to jira@arrow.apache.org by "Eduardo Ponce (Jira)" <ji...@apache.org> on 2021/11/03 19:48:00 UTC

[jira] [Updated] (ARROW-4096) [C++] Preserve "ordered" metadata in some special cases in dictionary unification

     [ https://issues.apache.org/jira/browse/ARROW-4096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eduardo Ponce updated ARROW-4096:
---------------------------------
    Labels: good-second-issue  (was: )

> [C++] Preserve "ordered" metadata in some special cases in dictionary unification
> ---------------------------------------------------------------------------------
>
>                 Key: ARROW-4096
>                 URL: https://issues.apache.org/jira/browse/ARROW-4096
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Wes McKinney
>            Assignee: Ben Kietzman
>            Priority: Major
>              Labels: good-second-issue
>
> In the event that all dictionaries are prefixes of a common dictionary, and all have ordered=true (note: this is not the same thing as being sorted), the resulting unified dictionary can also have ordered=true



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