[ARROW-12010] [C++][Compute] Improve performance of the hash table used in GroupIdentifier

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 5.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/27841
• Assignee: Michal Nowakiewicz
• Reporter: Ben Kietzman
• Created: 17/Mar/21 21:47
• Updated: 11/Jan/23 08:23
• Resolved: 20/May/21 21:42

Description

ARROW-11591 adds support for grouped aggregation with a very basic hash table.

Issue Links

• is a child of: ARROW-12633 [C++] Query engine umbrella issue
• links to: GitHub Pull Request #9768
• links to: GitHub Pull Request #10290