[GitHub] [arrow] 0x26res opened a new issue, #33971: [Python] segfault when calling nbytes on empty table with dictionary field

["0x26res (via GitHub)" <gi...@apache.org>]

0x26res opened a new issue, #33971:
URL: https://github.com/apache/arrow/issues/33971

   ### Describe the bug, including details regarding any error messages, version, and platform.
   
   Using `pyarrow.Table.nbytes` on an empty table with a dictionary field causes a segmentation fault.
   
   ```python
   import pyarrow as pa
   
   schema = pa.schema(
       [
           pa.field("foo", pa.dictionary(pa.int32(), pa.string())),
       ]
   )
   table = pa.table({"foo": []}, schema=schema)
   
   print(table.nbytes)  # segmentation fault  python
   ```
   
   A few notes:
   - `get_total_buffer_size` works (which is a good workaround for now)
   - It works if the table has got one or more row (including nulls)
   - It works if the table is empty but there are not dictionary fields
   - I'm using `pyarrow==11.0.0` and Python 3.9.16 (but it is happening in `10.0.1` as well, so not a new bug)
   
   
   
   ### Component(s)
   
   Python


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[GitHub] [arrow] westonpace closed issue #33971: [Python] segfault when calling nbytes on empty table with dictionary field

["westonpace (via GitHub)" <gi...@apache.org>]

westonpace closed issue #33971: [Python] segfault when calling nbytes on empty table with dictionary field
URL: https://github.com/apache/arrow/issues/33971


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