Wes McKinney created ARROW-1900:
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Summary: [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
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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