[ARROW-9782] [C++][Dataset] Ability to write ".feather" files with IpcFileFormat

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: C++, Python, R
• Labels: dataset pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/25830
• Assignee: Ben Kietzman
• Reporter: Joris Van den Bossche
• Created: 18/Aug/20 12:06
• Updated: 11/Jan/23 08:09
• Resolved: 08/Oct/20 00:21

Description

With the new dataset writing bindings, one can do ds.write_dataset(data, format="feather") (Python) or write_dataset(data, format = "feather") (R) to write a dataset to feather files.

However, because "feather" is just an alias for the IpcFileFormat, it will currently write all files with the .ipc extension.
I think this can be a bit confusing, since many people will be more familiar with "feather" and expect such an extension.

(more generally, ".ipc" is maybe not the best default, since it's not very descriptive extension. Something like ".arrow" might be better?)

cc npr bkietz

Issue Links

• links to: GitHub Pull Request #8305