Hi Uwe I believe you're using the latest Apache Drill 1.8.0. From a quick look at the stack trace, it appears to be a potential bug on Drill's interpretation of dictionary encoded data.
One way to verify that your C++ implementation of Parquet is correct would be to have your generated data without dictionary encoding before attempting to see if Drill can read that. Regards Kunal On Wed 7-Sep-2016 5:30:32 AM, Uwe Korn <uw...@xhochy.com> wrote: Hello, I'm currently looking at the correctness of our C++ implementation of Parquet and noticed that I cannot load these files in Drill. Although this is probably a bug in the C++ implementation, I don't understand what causes the error. Using the Java parquet-tools, I can read these files. I'm using Apache Drill 1.8.0 on OSX. I've posted the error output from Drill and the parquet file as a gist: https://gist.github.com/xhochy/d4441a5ff2025b877df43fecd4466a11 If anyone could have a short look into this and tell me why Drill cannot read the file, you would really help me to fix the parquet-cpp issues. Kind Regards, Uwe
