jqin61 commented on code in PR #353:
URL: https://github.com/apache/iceberg-python/pull/353#discussion_r1478509127
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pyiceberg/manifest.py:
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@@ -308,6 +308,7 @@ def data_file_with_partition(partition_type: StructType,
format_version: Literal
field_id=field.field_id,
name=field.name,
field_type=partition_field_to_data_file_partition_field(field.field_type),
+ required=False
Review Comment:
Dafault value is True, which breaks the avro writer encoding manifestenrty
when the partition value is null. (Because the attribute of required being True
in the nested field of the avro schema will be used by the writer to infer and
choose non-optional field writer which could not encode None value.)
This is for encoding only, so set it to False for now.
TODO: Set it properly according to table schema.
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