Hi Antoine, Thanks for the information, that should work for my purposes.
Regards, Naveen On Sat, Dec 12, 2020 at 1:49 PM Antoine Pitrou <anto...@python.org> wrote: > > Hello Naveen, > > Le 12/12/2020 à 19:43, Naveen Michaud-Agrawal a écrit : > > Is there any util code in the project (C++ or C) that can generate the > > appropriate CDataInterface struct from an Arrow buffer in the IPC format? > > Not directly, but you can deserialize the IPC buffer(s) to regular Arrow > record batches and then export those record batches to the C data > interface format, using the regular C++ APIs. > > - use RecordBatchStreamReader to get a stream of RecordBatch objects > (see arrow/ipc/reader.h for details) > - use ExportRecordBatch to export each RecordBatch to the C data interface > (see arrow/c/bridge.h for details) > > Regards > > Antoine. > > > > As a motivating use case, I would like to run the webassembly version of > > DuckDb in a browser, but feed it data from an external process that can > > generate arrow output. DuckDB natively supports arrow data but only using > > the CDataInterface. > > > > Thanks, > > Naveen Michaud-Agrawal > > > -- ----------------------------------- Naveen Michaud-Agrawal
