fix insert resp

Author: hantmac

databend_py/__init__.py

@@ -1,7 +1,7 @@
 from .client import Client
 from .connection import Connection
 
-VERSION = (0, 1, 4)
+VERSION = (0, 1, 5)
 __version__ = '.'.join(str(x) for x in VERSION)
 
 __all__ = ['Client', 'Connection']

databend_py/client.py

@@ -105,7 +105,7 @@ def execute(self, query, params=None, with_column_types=False,
 
         if is_insert:
             rv = self.process_insert_query(query, params)
-            return rv
+            return [], rv
 
         column_types, rv = self.process_ordinary_query(
             query, params=params, with_column_types=with_column_types,