Thanks a lot for your rapid reply and direction. Let's see whether we can do for this.
Best Regards, Zimo Zhang Micah Kornfield <emkornfi...@gmail.com> 于2021年4月24日周六 下午12:31写道： > Hi Zimo, > I don't think anybody is actively working on it. One of the challenges > would be how to represent a Union type in Parquet because to the best of my > knowledge parquet doesn't support this type. > > So if this is something you would like to contribute, proposing a mapping > to and from the Parquet type system would be a good place to start. If you > were to contribute this most of the code would be self-contained to the > directory you linked. > > Cheers, > Micah > > On Fri, Apr 23, 2021 at 9:01 PM Zmoey Zhang <zzm...@gmail.com> wrote: > > > Hi there, > > > > Dense union type is not supported yet in Parquet > > > > > https://github.com/apache/arrow/blob/8e43f23dcc6a9e630516228f110c48b64d13cec6/cpp/src/parquet/arrow/schema.cc#L382 > > . > > > > Is it planned to support it nearly? > > > > And if I'd implement this myself, is there any other codes to take care > of? > > > > Thanks, > > Zimo Zhang > > >
