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Posted to issues@arrow.apache.org by "Antoine Pitrou (Jira)" <ji...@apache.org> on 2019/09/17 14:54:00 UTC

[jira] [Updated] (ARROW-1900) [C++] Add utility functions for determining value range (maximum and minimum) of integer arrays

     [ https://issues.apache.org/jira/browse/ARROW-1900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Pitrou updated ARROW-1900:
----------------------------------
    Fix Version/s: 1.0.0

> [C++] Add utility functions for determining value range (maximum and minimum) of integer arrays
> -----------------------------------------------------------------------------------------------
>
>                 Key: ARROW-1900
>                 URL: https://issues.apache.org/jira/browse/ARROW-1900
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Wes McKinney
>            Priority: Major
>             Fix For: 1.0.0
>
>
> These functions don't need to be kernels right away; they are useful internally for determining when a "small range" alternative to a hash table can be used for integer arrays. The maximum and minimum is determined in a single scan



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