Fokko commented on code in PR #5627:
URL: https://github.com/apache/iceberg/pull/5627#discussion_r954242048
##########
python/pyiceberg/schema.py:
##########
@@ -638,3 +640,61 @@ def map(self, map_type: MapType, key_result: int,
value_result: int) -> int:
def primitive(self, primitive: PrimitiveType) -> int:
return 0
+
+
+def assign_fresh_schema_ids(schema: Schema) -> Schema:
+ """Traverses the schema, and sets new IDs"""
+ schema_struct = visit(schema.as_struct(), _SetFreshIDs())
+
+ fresh_identifier_field_ids = []
+ new_schema = Schema(*schema_struct.fields)
+ for field_id in schema.identifier_field_ids:
+ original_field = schema.find_field(field_id)
+ if original_field is None:
+ raise ValueError(f"Could not find field: {field_id}")
+ fresh_field = new_schema.find_field(original_field.name)
+ if fresh_field is None:
+ raise ValueError(f"Could not lookup field in new schema:
{original_field}")
+ fresh_identifier_field_ids.append(fresh_field.field_id)
+
+ return new_schema.copy(update={"identifier_field_ids":
fresh_identifier_field_ids})
+
+
+class _SetFreshIDs(SchemaVisitor[IcebergType]):
+ """Traverses the schema to get the highest field-id"""
+
+ counter: int
+
+ def __init__(self) -> None:
+ self.counter = 0
Review Comment:
Reminds me of university. Matlab starts counting at 1 instead of 0, got it
👍🏻
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org
For additional commands, e-mail: issues-h...@iceberg.apache.org
