rdblue commented on a change in pull request #4016:
URL: https://github.com/apache/iceberg/pull/4016#discussion_r807055531
##########
File path: python/src/iceberg/types.py
##########
@@ -93,21 +121,37 @@ def precision(self) -> int:
def scale(self) -> int:
return self._scale
- def __eq__(self, other):
- if type(self) is type(other):
- return self.precision == other.precision and self.scale ==
other.scale
- return False
+class NestedField(IcebergType):
+ """This represents a field of a struct, a map key, a map value, or a list
element. This is where field IDs, names, docs, and nullability are tracked."""
+
+ _instances: Dict[Tuple[bool, int, str, IcebergType, Optional[str]],
"NestedField"] = {}
+
+ def __new__(
+ cls,
+ is_optional: bool,
Review comment:
The optional boolean is at the end for map and list types. What about
adding this after `doc` and defaulting it to `True`?
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