Fokko commented on code in PR #1555:
URL: https://github.com/apache/iceberg-python/pull/1555#discussion_r1925902812
##########
pyiceberg/partitioning.py:
##########
@@ -413,8 +413,10 @@ def partition_record_value(partition_field:
PartitionField, value: Any, schema:
the final partition record value.
"""
iceberg_type =
schema.find_field(name_or_id=partition_field.source_id).field_type
- iceberg_typed_value = _to_partition_representation(iceberg_type, value)
- transformed_value =
partition_field.transform.transform(iceberg_type)(iceberg_typed_value)
+ if not isinstance(value, int):
+ # When adding files, it can be that we still need to convert from
logical types to physical types
+ value = _to_partition_representation(iceberg_type, value)
+ transformed_value =
partition_field.transform.transform(iceberg_type)(value)
Review Comment:
Yes, so I got to the bottom of it. It has to do with the return types of the
transforms. eg. When we apply the `bucket` transform, the result is always an
int, which is great. The problem is with the identity transform where the
destination type is equal to the source type. So when a date comes in, it also
comes out.
I think in the end it is better to remove the `_to_partition_representation`
and see if we can consolidate this somewhere, but that's a different PR.
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