rok opened a new issue, #48961:
URL: https://github.com/apache/arrow/issues/48961
### Describe the bug, including details regarding any error messages,
version, and platform.
It seems pandas 3 changed default string type when going from python types?
```python
_________________ [doctest] pyarrow.lib.RecordBatch.add_column
_________________
2861 >>> import pyarrow as pa
2862 >>> import pandas as pd
2863 >>> df = pd.DataFrame({'n_legs': [2, 4, 5, 100],
2864 ... 'animals': ["Flamingo", "Horse", "Brittle
stars", "Centipede"]})
2865 >>> batch = pa.RecordBatch.from_pandas(df)
2866
2867 Add column:
2868
2869 >>> year = [2021, 2022, 2019, 2021]
2870 >>> batch.add_column(0,"year", year)
Differences (unified diff with -expected +actual):
@@ -2,5 +2,5 @@
year: int64
n_legs: int64
-animals: string
+animals: large_string
----
year: [2021,2022,2019,2021]
```
Here's the same check before and after the upgrade:
[pandas
2.3.3](https://github.com/apache/arrow/actions/runs/21043431508/job/60511139081?pr=48727)
[pandas
3.0.0](https://github.com/apache/arrow/actions/runs/21251665557/job/61163539974?pr=48727)
### Component(s)
Python
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