[ARROW-14607] [Python] Basic Group By functionality in pyarrow

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: Python
• External issue URL: https://github.com/apache/arrow/issues/30153
• Assignee: Alessandro Molina
• Reporter: Alessandro Molina
• Created: 05/Nov/21 11:15
• Updated: 11/Jan/23 08:41
• Resolved: 17/Dec/21 09:54

Description

Pyarrow currently lacks a group by functionality even though all the building blocks are available. It would be good to expose a very simple to use group_by function leaving more complex use cases to the execution engine once IR execution is available.

Issue Links

• duplicates: ARROW-13688 [Python] Expose GroupBy function.

Sub-Tasks

• [Python] Hide hash_* functions from pyarrow.compute: Resolved
• [Python] Provide access to hash_aggregate functions through a group_by method: Resolved
• [Doc][Python] Improve compute documentation: Resolved
• [Python] Add a Python Cookbook recipe on group_by + sort: Closed