[db-manager] Query elapsed time include fetch time

The values reported were always lower than
the actual time for query and fetch.

I guess that those values are useful when you
are testing queries and fine-tuning them,
so the actual value should include fetching
time.

python/plugins/db_manager/db_plugins/data_model.py

@@ -192,9 +192,7 @@ def __init__(self, db, sql, parent=None):
 
         t = QTime()
         t.start()
-        c = self.db._execute(None, str(sql))
-        self._secs = t.elapsed() / 1000.0
-        del t
+        c = self.db._execute(None, sql)
 
         self._affectedRows = 0
         data = []
@@ -216,7 +214,9 @@ def __init__(self, db, sql, parent=None):
         # commit before closing the cursor to make sure that the changes are stored
         self.db._commit()
         c.close()
+        self._secs = t.elapsed() / 1000.0
         del c
+        del t
 
     def secs(self):
         return self._secs