HonahX commented on code in PR #921:
URL: https://github.com/apache/iceberg-python/pull/921#discussion_r1678713069
##########
pyiceberg/io/pyarrow.py:
##########
@@ -2214,13 +2199,16 @@ def _dataframe_to_data_files(
property_name=TableProperties.WRITE_TARGET_FILE_SIZE_BYTES,
default=TableProperties.WRITE_TARGET_FILE_SIZE_BYTES_DEFAULT,
)
+ name_mapping = table_metadata.schema().name_mapping
Review Comment:
Sounds great! I initially raised this because we’re assigning field IDs for
the input dataframe, which aligns with the general purpose of name mapping - to
provide fallback IDs. On second thought, schema.name-mapping.default is more
for the read side, so using it here may silently introduce unwanted side
effects during write. I agree, let’s hold off on this for a while and wait for
more discussions.
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