Fix a bug where a failed transaction would cause bad profiling data, showing an open-ended query.

lib/Doctrine/DBAL/Statement.php

@@ -164,6 +164,9 @@ class Statement implements \IteratorAggregate, DriverStatement
         try {
             $stmt = $this->stmt->execute($params);
         } catch (\Exception $ex) {
+            if ($logger) {
+                $logger->stopQuery();
+            }
             throw DBALException::driverExceptionDuringQuery($ex, $this->sql, $this->conn->resolveParams($this->params, $this->types));
         }