On Mon, Feb 25, 2019 at 5:36 PM Antoine Pitrou <anto...@python.org> wrote: > > Does it also roundtrip through e.g. Pandas conversion?
No. Any Arrow metadata is lost when you call to_pandas() (because pandas objects don't have the ability to preserve any column-level metadata, only the physical data type). The metadata gleaned from pandas.DataFrame when calling Table.from_pandas is preserved through IPC messages, though > > Regards > > Antoine.
