FanatoniQ commented on code in PR #25430:
URL: https://github.com/apache/airflow/pull/25430#discussion_r934229151
##########
airflow/providers/common/sql/hooks/sql.py:
##########
@@ -30,13 +30,10 @@
from airflow.utils.module_loading import import_string
from airflow.version import version
-if TYPE_CHECKING:
- from sqlalchemy.engine import CursorResult
-
-def fetch_all_handler(cursor: 'CursorResult') -> Optional[List[Tuple]]:
+def fetch_all_handler(cursor) -> Optional[List[Tuple]]:
"""Handler for DbApiHook.run() to return results"""
- if cursor.returns_rows:
+ if cursor.description is not None:
return cursor.fetchall()
Review Comment:
@uranusjr Totally agree on the all standard-compliant part. However then the
sqlalchemy's documentation is wrong then since for returns_rows it only
mentions description. Do you have an example where description is not None and
no rows where returned ?
##########
airflow/providers/common/sql/hooks/sql.py:
##########
@@ -30,13 +30,10 @@
from airflow.utils.module_loading import import_string
from airflow.version import version
-if TYPE_CHECKING:
- from sqlalchemy.engine import CursorResult
-
-def fetch_all_handler(cursor: 'CursorResult') -> Optional[List[Tuple]]:
+def fetch_all_handler(cursor) -> Optional[List[Tuple]]:
"""Handler for DbApiHook.run() to return results"""
- if cursor.returns_rows:
+ if cursor.description is not None:
return cursor.fetchall()
Review Comment:
@uranusjr I find sqlalchemy notes on rowcount:
https://docs.sqlalchemy.org/en/14/core/connections.html?highlight=returns_#sqlalchemy.engine.CursorResult.rowcount
very interesting
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