Fokko commented on code in PR #2478:
URL: https://github.com/apache/iceberg-python/pull/2478#discussion_r2381661020
##########
tests/integration/test_catalog.py:
##########
@@ -343,3 +345,66 @@ def test_update_namespace_properties(test_catalog:
Catalog, database_name: str)
else:
assert k in update_report.removed
assert "updated test description" ==
test_catalog.load_namespace_properties(database_name)["comment"]
+
+
[email protected]
[email protected]("test_catalog", CATALOGS)
+def test_update_table_schema(test_catalog: Catalog, table_schema_nested:
Schema, table_name: str, database_name: str) -> None:
+ identifier = (database_name, table_name)
+ test_catalog.create_namespace(database_name)
+ table = test_catalog.create_table(identifier, table_schema_nested)
+
+ update = table.update_schema().add_column("new_col", LongType())
+ update.commit()
+
+ loaded = test_catalog.load_table(identifier)
+
+ assert loaded.schema().find_field("new_col", case_sensitive=False)
+
+
[email protected]
[email protected]("test_catalog", CATALOGS)
+def test_update_table_schema_conflict(
+ test_catalog: Catalog, table_schema_nested: Schema, table_name: str,
database_name: str
+) -> None:
+ identifier = (database_name, table_name)
+ test_catalog.create_namespace(database_name)
+ table = test_catalog.create_table(identifier, table_schema_nested)
+
+ update = table.update_schema().add_column("new_col", LongType())
+
+ # update the schema concurrently so that the original update fails
+ concurrent_table = test_catalog.load_table(identifier)
+ # The test schema is assumed to have a `bar` column that can be deleted.
+ with concurrent_table.update_schema(allow_incompatible_changes=True) as
concurrent_update:
+ concurrent_update.set_identifier_fields("foo")
+ concurrent_update.update_column("foo", required=True)
+ concurrent_update.delete_column("bar")
+
+ # attempt to commit the original update
+ with pytest.raises(CommitFailedException, match="Requirement failed:
current schema"):
+ update.commit()
+
+ loaded = test_catalog.load_table(identifier)
+ assert loaded.schema() == concurrent_table.schema()
Review Comment:
How about explicitly asserting the schema here:
```python
assert concurrent_table.schema() == Schema(..)
```
##########
tests/integration/test_catalog.py:
##########
@@ -343,3 +345,66 @@ def test_update_namespace_properties(test_catalog:
Catalog, database_name: str)
else:
assert k in update_report.removed
assert "updated test description" ==
test_catalog.load_namespace_properties(database_name)["comment"]
+
+
[email protected]
[email protected]("test_catalog", CATALOGS)
+def test_update_table_schema(test_catalog: Catalog, table_schema_nested:
Schema, table_name: str, database_name: str) -> None:
+ identifier = (database_name, table_name)
+ test_catalog.create_namespace(database_name)
+ table = test_catalog.create_table(identifier, table_schema_nested)
+
+ update = table.update_schema().add_column("new_col", LongType())
+ update.commit()
Review Comment:
```suggestion
with table.update_schema() as update:
update.add_column("new_col", LongType())
```
##########
tests/integration/test_catalog.py:
##########
@@ -343,3 +345,66 @@ def test_update_namespace_properties(test_catalog:
Catalog, database_name: str)
else:
assert k in update_report.removed
assert "updated test description" ==
test_catalog.load_namespace_properties(database_name)["comment"]
+
+
[email protected]
[email protected]("test_catalog", CATALOGS)
+def test_update_table_schema(test_catalog: Catalog, table_schema_nested:
Schema, table_name: str, database_name: str) -> None:
+ identifier = (database_name, table_name)
+ test_catalog.create_namespace(database_name)
+ table = test_catalog.create_table(identifier, table_schema_nested)
+
+ update = table.update_schema().add_column("new_col", LongType())
+ update.commit()
+
+ loaded = test_catalog.load_table(identifier)
+
+ assert loaded.schema().find_field("new_col", case_sensitive=False)
Review Comment:
The underlying table should refresh automatically:
```suggestion
assert table.schema().find_field("new_col", case_sensitive=False)
```
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