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fix: schema check of iceberg logical types #856

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fix: schema check of iceberg logical types #856

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751d87b
fix: schema check of iceberg logical types
raphaelauv Jun 25, 2024
d1c48bf
review 1
raphaelauv Jun 26, 2024
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20 changes: 18 additions & 2 deletions pyiceberg/table/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -128,11 +128,13 @@
TableVersion,
)
from pyiceberg.types import (
FixedType,
IcebergType,
ListType,
MapType,
NestedField,
PrimitiveType,
UUIDType,
StructType,
transform_dict_value_to_str,
)
Expand All @@ -153,7 +155,21 @@
ALWAYS_TRUE = AlwaysTrue()
TABLE_ROOT_ID = -1

_JAVA_LONG_MAX = 9223372036854775807

def _apply_logical_conversion(table_schema: Schema, task_schema: Schema):
all_fields = []
for task_field in task_schema.fields:
table_field = table_schema.find_field(task_field.name)
new_type = None
if table_field.field_type == UUIDType():
if type(task_field.field_type) == FixedType and len(task_field.field_type) == 16:
new_type = UUIDType()
if new_type is not None:
all_fields.append(NestedField(task_field.field_id, task_field.name, new_type, task_field.required))
else:
all_fields.append(task_field)

return Schema(*all_fields)


def _check_schema_compatible(table_schema: Schema, other_schema: "pa.Schema") -> None:
Expand All @@ -176,7 +192,7 @@ def _check_schema_compatible(table_schema: Schema, other_schema: "pa.Schema") ->
raise ValueError(
f"PyArrow table contains more columns: {', '.join(sorted(additional_names))}. Update the schema first (hint, use union_by_name)."
) from e

task_schema = _apply_logical_conversion(table_schema,task_schema)
if table_schema.as_struct() != task_schema.as_struct():
from rich.console import Console
from rich.table import Table as RichTable
Expand Down