In the rust implementation we use the term "Arrow IPC" and I support your option 1:
> The name Feather V2 is deprecated. Only the extension ".arrow" will be used for IPC files. Andrew On Mon, Aug 29, 2022 at 11:21 AM Matthew Topol <m...@voltrondata.com.invalid> wrote: > When I wrote "In-Memory Analytics with Apache Arrow" I definitely > treated "Feather" as deprecated and mentioned it only in passing > specifically indicating "Arrow IPC" as the terminology to use. I only > even mentioned "Feather" at all because there are still methods in > pyarrow that reference it by name. > > That's just my opinion though... > > On Mon, Aug 29 2022 at 11:08:53 AM -0400, David Li > <lidav...@apache.org> wrote: > > This has come up before, e.g. see [1] [2] [3]. > > > > I would say "Feather" is effectively deprecated and we are using > > "Arrow IPC" now but I am not sure what others think. (From that > > GitHub link, it seems to be mixed.) And ".arrow" is the official > > extension now (since it is registered as part of our MIME type). But > > there's existing documentation and not everything has been updated to > > be consistent (as you saw). > > > > [1]: > > <https://lists.apache.org/thread/0s6lgvd3g56ymd60vl5lgzhf4ro6hts5> > > [2]: > > <https://arrow.apache.org/faq/#what-about-the-feather-file-format> > > [3]: > > < > https://stackoverflow.com/questions/67910612/arrow-ipc-vs-feather/67911190#67911190 > > > > > > -David > > > > On Mon, Aug 29, 2022, at 10:50, 島 達也 wrote: > >> Hi all. > >> > >> I know the documentation (mainly pyarrow documentation) sometimes > >> refers > >> to IPC files as Feather files, but are there any guidelines for > >> when to > >> refer to an IPC file as a Feather file and when to refer to it as > >> an IPC > >> file? > >> I believe that calling the same file an Arrow IPC file at times and > >> a > >> Feather file at other times is confusing to those unfamiliar with > >> Apache > >> Arrow (myself included). > >> Surprisingly, these files may even have completely different > >> extensions, > >> ".arrow" and ".feather", which are not similar. > >> > >> Perhaps there are several options for future use of the name > >> Feather, > >> such as > >> > >> 1. The name Feather V2 is deprecated. Only the extension ".arrow" > >> will > >> be used for IPC files. > >> 2. In some contexts(?), IPC files are referred to as Feather; only > >> ".arrow" is used for the IPC file extension to clearly > >> distinguish > >> it from Feather V1's ".feather". > >> 3. When an IPC file is called Feather by some rule, extension > >> ".feather" is used, and when an IPC file is not called Feather, > >> extension ".arrow" is used. > >> > >> I mistakenly thought the current status was 2, but according to the > >> discussion in this PR > >> (<https://github.com/apache/arrow/pull/13677>), > >> apparently the current status seems 3. (However, there seems to be > >> no > >> rule as to when an IPC file should be called a Feather) > >> > >> I am not very familiar with Arrow and this is my first post to this > >> mailing list so I apologize if I have done something wrong or > >> inappropriate. > >> > >> Best, > >> SHIMA Tatsuya > >
