syun64 commented on code in PR #902:
URL: https://github.com/apache/iceberg-python/pull/902#discussion_r1672429398
##########
pyiceberg/io/pyarrow.py:
##########
@@ -1268,14 +1265,8 @@ def __init__(self, file_schema: Schema):
def _cast_if_needed(self, field: NestedField, values: pa.Array) ->
pa.Array:
file_field = self.file_schema.find_field(field.field_id)
- if field.field_type.is_primitive:
- if field.field_type != file_field.field_type:
- return
values.cast(schema_to_pyarrow(promote(file_field.field_type, field.field_type),
include_field_ids=False))
- elif (target_type := schema_to_pyarrow(field.field_type,
include_field_ids=False)) != values.type:
Review Comment:
That makes sense @Fokko - thank you for the catch! I think this is a [bug I
introduced in this
PR](https://github.com/apache/iceberg-python/commit/e61ef5770b4d73e683e2c78bebdd6c2165102a6b)
when I attempted to remove the field IDs from the read schema without
realizing how `to_requested_schema` was being used both for write, as well as
for read. I think this could be fixed by exposing `include_field_ids` as an
argument to the Visitors and `to_requested_schema`
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