kevinjqliu commented on issue #584:
URL: https://github.com/apache/iceberg-python/issues/584#issuecomment-2041172613

   Thanks for reporting this! And providing a reproducible example.
   
   Here's what I've found. 
   
   In the `_task_to_table` function, the provided schema is modified before its 
passed to the underlying arrow Scanner. This is done in `sanitize_column_names` 
[here](https://github.com/apache/iceberg-python/blob/4148edb5e28ae88024a55e0b112238e65b873957/pyiceberg/io/pyarrow.py#L970)
 
   
   The `file_project_schema` field is then passed into the Scanner, which leads 
to the error above.
   The schema name is changed from `TEST:A1B2.RAW.ABC-GG-1-A` to 
`TEST_x3AA1B2_x2ERAW_x2EABC_x2DGG_x2D1_x2DA`.
   
   The read will work if you comment out the schema modification 
([L981](https://github.com/apache/iceberg-python/blob/4148edb5e28ae88024a55e0b112238e65b873957/pyiceberg/io/pyarrow.py#L981))
 and just return the `arrow_table` instead of 
[L1014](https://github.com/apache/iceberg-python/blob/4148edb5e28ae88024a55e0b112238e65b873957/pyiceberg/io/pyarrow.py#L1014)
   
   


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