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https://issues.apache.org/jira/browse/ARROW-1900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-1900:
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Labels: Analytics pull-request-available (was: Analytics)
> [C++] Add kernel 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
> Labels: Analytics, pull-request-available
> Fix For: 1.0.0
>
>
> These functions can be 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.
> We already have infrastructure for aggregate kernels, so this would be an
> easy addition.
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