jayceslesar commented on code in PR #2410:
URL: https://github.com/apache/iceberg-python/pull/2410#discussion_r2456987187
##########
tests/integration/test_catalog.py:
##########
@@ -247,6 +252,59 @@ def test_table_exists(test_catalog: Catalog,
table_schema_nested: Schema, databa
assert test_catalog.table_exists((database_name, table_name)) is True
[email protected]
[email protected]("test_catalog", CATALOGS)
+def test_incompatible_partitioned_schema_evolution(
+ test_catalog: Catalog, test_schema: Schema, test_partition_spec:
PartitionSpec, database_name: str, table_name: str
+) -> None:
+ if isinstance(test_catalog, HiveCatalog):
+ pytest.skip("HiveCatalog does not support schema evolution")
+
+ identifier = (database_name, table_name)
+ test_catalog.create_namespace(database_name)
+ table = test_catalog.create_table(identifier, test_schema,
partition_spec=test_partition_spec)
+ assert test_catalog.table_exists(identifier)
+
+ with pytest.raises(ValidationError):
+ with table.update_schema() as update:
+ update.delete_column("VendorID")
+
+ # Assert column was not dropped
+ assert "VendorID" in table.schema().column_names
+
+ with table.transaction() as transaction:
+ with transaction.update_spec() as spec_update:
+ spec_update.remove_field("VendorID")
+
+ with transaction.update_schema() as schema_update:
+ schema_update.delete_column("VendorID")
+
+ assert table.spec() == PartitionSpec(PartitionField(2, 1001,
DayTransform(), "tpep_pickup_day"), spec_id=1)
+ assert table.schema() == Schema(NestedField(2, "tpep_pickup_datetime",
TimestampType(), False))
Review Comment:
I think that is a very valid reason!
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