hi Isaac -- you are more than welcome to submit a PR to cause unsigned types to be written as signed integers when using flavor='spark' from pyarrow. The simplest thing would be to do the casting of unsigned types to signed prior to writing the Parquet file
- Wes On Tue, Oct 29, 2019 at 9:09 AM Isaac Myers <isaacmy...@protonmail.com.invalid> wrote: > > Fields with unsigned types written with Arrow C++ can't be read by PySpark, > due to Spark's lack of support unsigned types (per > https://issues.apache.org/jira/browse/SPARK-10113). There is already an issue > to address the same problem when writing tables with unsigned fields using > PyArrow (https://issues.apache.org/jira/browse/ARROW-1988). Are there any > plans to address this issue for Arrow C++? > > Sent with [ProtonMail](https://protonmail.com) Secure Email.