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https://issues.apache.org/jira/browse/ARROW-13706?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Neal Richardson updated ARROW-13706:
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Fix Version/s: (was: 9.0.0)
> [C++][Compute] Add Find method to Grouper
> -----------------------------------------
>
> Key: ARROW-13706
> URL: https://issues.apache.org/jira/browse/ARROW-13706
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Michal Nowakiewicz
> Assignee: Michal Nowakiewicz
> Priority: Major
> Labels: query-engine
>
> After SwissTable implements find() method in ARROW-13532, Grouper can add
> Find() method to its interface. Note that the main problem is that Grouper
> uses mutable member variables for storing temporary data, whenever it is
> doing hash table lookups, even when the hash table is used as read-only.
> Grouper is also not thread-safe, while Find() method ideally should be
> thread-safe, working on immutable object.
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