GianlucaFicarelli commented on issue #33030:
URL: https://github.com/apache/arrow/issues/33030#issuecomment-1576471014
This issue is still happening when using:
- pyarrow 12.0.0
- pandas 2.0.2
Steps to reproduce (similar to the ones in the original description):
```python
import pandas as pd
df1 = pd.DataFrame({"a": [10, 11, 12], "b": [20, 21, 22]},
index=pd.RangeIndex(3, name="range0"))
df1 = df1.set_index("b", append=True)
print(df1)
path = "example.parquet"
df1.to_parquet(path, engine="pyarrow", index=None)
pd.read_parquet(path, engine="pyarrow")
```
Error:
```
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "./venv/lib/python3.10/site-packages/pandas/io/parquet.py", line 509,
in read_parquet
return impl.read(
File "./venv/lib/python3.10/site-packages/pandas/io/parquet.py", line 230,
in read
result = pa_table.to_pandas(**to_pandas_kwargs)
File "pyarrow/array.pxi", line 837, in
pyarrow.lib._PandasConvertible.to_pandas
File "pyarrow/table.pxi", line 4114, in pyarrow.lib.Table._to_pandas
File "./venv/lib/python3.10/site-packages/pyarrow/pandas_compat.py", line
810, in table_to_blockmanager
table, index = _reconstruct_index(table, index_descriptors,
File "./venv/lib/python3.10/site-packages/pyarrow/pandas_compat.py", line
961, in _reconstruct_index
result_table, index_level, index_name = _extract_index_level(
File "./venv/lib/python3.10/site-packages/pyarrow/pandas_compat.py", line
999, in _extract_index_level
logical_name = field_name_to_metadata[field_name]['name']
KeyError: 'b'
```
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