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https://issues.apache.org/jira/browse/ARROW-8991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17438277#comment-17438277
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Antoine Pitrou commented on ARROW-8991:
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The underlying idea is to reuse the hash functions already used for hash
kernels.
> [C++][Compute] Add scalar_hash function
> ---------------------------------------
>
> Key: ARROW-8991
> URL: https://issues.apache.org/jira/browse/ARROW-8991
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Wes McKinney
> Priority: Major
> Labels: analytics, good-second-issue
> Fix For: 7.0.0
>
>
> The purpose of this function is to compute 32- or 64-bit hash values for each
> cell in an Array. Hashes for nested types can be computed recursively by
> combining the hash values of their children
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