StructArrayReader Cannot Handle Nested Lists

[tustvold]

Describe the bug

When reading the parquet file provided by @kesavkolla here the reader bails out with "Not all children array length are the same".

Interestingly if you just project column 32 i.e.

let mut reader = reader.get_record_reader_by_columns(vec![32], 1024).unwrap();

You get ParquetError("Arrow: item_reader rep levels are None.")

If you project 31 and 32 you get the above error.

To Reproduce

Run the test on the provided file

Expected behavior

The file should be read correctly