Created issue #5532 and wes has asked to move the discussion to jira.  I was looking for hash aggregation feature for arrow that we can use in python

Reporter: Joe Muruganandam

Related issues:

• [C++] Implement Hash Aggregation query execution node (duplicates)

PRs and other links:

• GitHub Pull Request #5570

_{Note: This issue was originally created as ARROW-6733. Please see the migration documentation for further details.}