FanatoniQ commented on code in PR #25430:
URL: https://github.com/apache/airflow/pull/25430#discussion_r934285590
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airflow/providers/common/sql/hooks/sql.py:
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@@ -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:
Quoting sqlalchemy (aforementioned link):
- "Statements that use RETURNING may not return a correct rowcount."
- "Contrary to what the Python DBAPI says, it does not return the number of
rows available from the results of a SELECT statement as DBAPIs cannot support
this functionality when rows are unbuffered."
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