Release/25.11.2

api/duckdb_pool_simple.py

@@ -142,31 +142,10 @@ def get_connection(self, timeout: float = 5.0):
             raise
 
         finally:
-            # CRITICAL: Always return and clean connection
+            # CRITICAL: Always return connection to pool
+            # DuckDB connections are stateless - no need to test or reset
             if conn is not None:
-                try:
-                    # Reset connection state (clears DuckDB internal caches)
-                    # Use a simple query to clear any cached results
-                    result = conn.execute("SELECT 1").fetchall()
-                    del result
-
-                    # Force aggressive garbage collection to release memory
-                    # This is critical for preventing memory leaks from DuckDB result sets
-                    collected = gc.collect()
-
-                    # Log GC only for significant collections (reduces log noise)
-                    if collected > 100:
-                        logger.debug(f"Connection cleanup: collected {collected} objects")
-
-                except Exception as e:
-                    # If cleanup fails, connection may be closed - don't return it to pool
-                    logger.warning(f"Connection cleanup failed ({e}) - connection not returned to pool")
-                    conn = None  # Mark as invalid so we don't return it
-
-                finally:
-                    # Always return connection to pool (if still valid)
-                    if conn is not None:
-                        self.pool.put(conn)
+                self.pool.put(conn)
 
     def get_metrics(self) -> Dict[str, Any]:
         """