[C++][Dataset] Ability to write ".feather" files with IpcFileFormat #25830
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?)
Reporter: Joris Van den Bossche / @jorisvandenbossche
Assignee: Ben Kietzman / @bkietz
PRs and other links:
Note: This issue was originally created as ARROW-9782. Please see the migration documentation for further details.