amoeba opened a new issue, #46811:
URL: https://github.com/apache/arrow/issues/46811
### Describe the bug, including details regarding any error messages,
version, and platform.
On my x86_64 Linux machine, I can get a SIGFPE crash with code like this
under PyArrow 20,
```python
import pyarrow as pa
import pyarrow.parquet as pq
schema = pa.schema([])
empty_table = pa.Table.from_batches([], schema=schema)
parquet_file_path = "empty_file.parquet"
pq.write_table(empty_table, parquet_file_path)
parquet_file = pq.ParquetFile(parquet_file_path)
chunks = parquet_file.iter_batches(batch_size=0)
for idx, chunk in enumerate(chunks):
df = chunk # <-- doing anything with chunk crashes
```
The crash is:
```
Thread 1 "python" received signal SIGFPE, Arithmetic exception.
#0 0x00007ffff4b6314e in parquet::arrow::(anonymous
namespace)::FileReaderImpl::GetRecordBatchReader(std::vector<int,
std::allocator<int> > const&, std::vector<int, std::allocator<int> > const&) ()
from /work/.venv/lib/python3.13/site-packages/pyarrow/libparquet.so.2000
#1 0x00007ffff4b6355a in parquet::arrow::(anonymous
namespace)::FileReaderImpl::GetRecordBatchReader(std::vector<int,
std::allocator<int> > const&) () from
/work/.venv/lib/python3.13/site-packages/pyarrow/libparquet.so.2000
#2 0x00007ffff57da45e in
__pyx_gb_7pyarrow_8_parquet_13ParquetReader_10generator(__pyx_CoroutineObject*,
_ts*, _object*) () from
/work/.venv/lib/python3.13/site-packages/pyarrow/_parquet.cpython-313-x86_64-linux-gnu.so
#3 0x00007ffff5b1aac7 in __Pyx_Coroutine_SendEx(__pyx_CoroutineObject*,
_object*, int) [clone .constprop.0] () from
/work/.venv/lib/python3.13/site-packages/pyarrow/lib.cpython-313-x86_64-linux-gnu.so
#4 0x00007ffff6b1c373 in enum_next () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#5 0x00007ffff6baade3 in _PyEval_EvalFrameDefault () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#6 0x00007ffff6d36f6a in PyEval_EvalCode () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#7 0x00007ffff6d34f95 in builtin_exec () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#8 0x00007ffff6baad20 in _PyEval_EvalFrameDefault () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#9 0x00007ffff6d36f6a in PyEval_EvalCode () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#10 0x00007ffff6d34f95 in builtin_exec () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#11 0x00007ffff6b522c6 in
cfunction_vectorcall_FASTCALL_KEYWORDS.llvm.2372027649757183752 () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#12 0x00007ffff6ba9682 in _PyEval_EvalFrameDefault () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#13 0x00007ffff6da9c86 in pymain_run_module () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#14 0x00007ffff6a3d4c9 in pymain_run_stdin () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#15 0x00007ffff6da93d3 in Py_RunMain () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#16 0x00007ffff6da9aba in pymain_main () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#17 0x00007ffff6da9b7c in Py_BytesMain () from
/home/bryce/.local/share/uv/python/cpython-3.13.1-linux-x86_64-gnu/bin/../lib/libpython3.13.so.1.0
#18 0x00007ffff6537ca8 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#19 0x00007ffff6537d65 in __libc_start_main () from
/lib/x86_64-linux-gnu/libc.so.6
#20 0x00000000006000a9 in _start ()
```
I don't see the crash,
- on macOS
- If I specify a non-empty Schema or
- If I specify a non-zero batch_size to iter_batches
### Component(s)
C++, Python
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