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Posted to jira@arrow.apache.org by "Antoine Pitrou (Jira)" <ji...@apache.org> on 2021/11/23 18:33:00 UTC

[jira] [Closed] (ARROW-5215) [C++] Need a way to change integer size in DictBuilder and AdaptiveIntBuilder

     [ https://issues.apache.org/jira/browse/ARROW-5215?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Pitrou closed ARROW-5215.
---------------------------------
    Resolution: Done

> [C++] Need a way to change integer size in DictBuilder and AdaptiveIntBuilder
> -----------------------------------------------------------------------------
>
>                 Key: ARROW-5215
>                 URL: https://issues.apache.org/jira/browse/ARROW-5215
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>    Affects Versions: 0.13.0
>            Reporter: Antoine Pitrou
>            Priority: Major
>
> Currently, there's no way to choose the index type with DictionaryBuilder. Consequently, it's difficult to implement e.g. casts to a specific dictionary type (instead the DictionaryBuilder will select the smallest possible integer size for the index type).
> This will allow implementing "null to dict" casting.



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