Re: Arbitrary user-defined metadata in feather

2020-08-31 Thread Neal Richardson
Hi Steve, Key-value metadata is exposed in both Python and R. See https://arrow.apache.org/docs/python/generated/pyarrow.Schema.html?highlight=metadata#pyarrow.Schema.metadata and https://arrow.apache.org/docs/r/articles/arrow.html#r-object-attributes, respectively. Neal On Mon, Aug 31, 2020 at 3

Arbitrary user-defined metadata in feather

2020-08-31 Thread Sun Yijiang
Is there a way to read/write user-defined metadata in IPC format? As far as I know, metadata seems to exist for data schema only. It would be very helpful to expose key-value metadata interface in C++/Python and R APIs. Best, Steve