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BUG: to_sql fails with arrow date column #53854
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…ev#53856) * BUG: to_sql fails for pyarrow date dtype (pandas-dev#53854) * use ArrowExtensionArray.to_numpy instead of ArrowExtensionArray.astype
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Pandas version checks
I have checked that this issue has not already been reported.
I have confirmed this bug exists on the latest version of pandas.
I have confirmed this bug exists on the main branch of pandas.
Reproducible Example
Issue Description
When calling
.to_sql
on a dataframe with a column of dtypepd.ArrowDtype(pa.date32())
orpd.ArrowDtype(pa.date64())
, pandas callsto_pydatetime
on it. However, this is only supported for pyarrow timestamp columns.I was able to fix this by patching the following part of the
insert_data
function:Expected Behavior
If you leave the date column as an object column (don't set
dtype=pd.ArrowDtype(pa.date32())
), everything works, and a proper date column gets stored in the database.Installed Versions
INSTALLED VERSIONS
commit : 965ceca
python : 3.11.3.final.0
python-bits : 64
OS : Darwin
OS-release : 22.4.0
Version : Darwin Kernel Version 22.4.0: Mon Mar 6 20:59:28 PST 2023; root:xnu-8796.101.5~3/RELEASE_ARM64_T6000
machine : arm64
processor : arm
byteorder : little
LC_ALL : None
LANG : en_US.UTF-8
LOCALE : en_US.UTF-8
pandas : 2.0.2
numpy : 1.25.0
pytz : 2023.3
dateutil : 2.8.2
setuptools : 68.0.0
pip : 23.1.2
Cython : None
pytest : 7.4.0
hypothesis : None
sphinx : None
blosc : None
feather : None
xlsxwriter : None
lxml.etree : None
html5lib : None
pymysql : None
psycopg2 : 2.9.6
jinja2 : 3.1.2
IPython : 8.14.0
pandas_datareader: None
bs4 : 4.12.2
bottleneck : None
brotli : None
fastparquet : None
fsspec : 2023.6.0
gcsfs : None
matplotlib : None
numba : None
numexpr : None
odfpy : None
openpyxl : None
pandas_gbq : None
pyarrow : 12.0.1
pyreadstat : None
pyxlsb : None
s3fs : None
scipy : None
snappy : None
sqlalchemy : 2.0.17
tables : None
tabulate : 0.9.0
xarray : None
xlrd : None
zstandard : None
tzdata : 2023.3
qtpy : None
pyqt5 : None
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