[ARROW-13835] [Python] Document utility to unify schemas

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.0.0
• Fix Version/s: 6.0.0
• Component/s: Documentation
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/29458
• Assignee: Alessandro Molina
• Reporter: Alessandro Molina
• Created: 01/Sep/21 13:35
• Updated: 11/Jan/23 08:35
• Resolved: 01/Sep/21 17:07

Description

In R we have the unify_schemas utility which allows to merge two or more schemas, in Python such feature would be helpful but we don't seem to provide it.

Such feature already exists in C++ ( https://github.com/apache/arrow/blob/27affa3181708c4f800f9d0a70603fb3390d6462/cpp/src/arrow/type.cc#L1722-L1744 ) and should be exposed in PyArrow and documented under https://arrow.apache.org/docs/python/api/datatypes.html

Issue Links

• links to: GitHub Pull Request #11057