modify get_values and get_dicts return from bool to list

Author: Vien

vndb.py

@@ -132,7 +132,7 @@ def get_dicts(self, sql, params=None, convert=True):
                     return res
         except Exception as e:
             raise e
-        return False
+        return []
 
     def get_values(self, sql, params=None, convert=True):
         if not self._tuple_cursor:
@@ -151,7 +151,7 @@ def get_values(self, sql, params=None, convert=True):
                     return res
         except Exception as e:
             raise e
-        return False
+        return []
 
     def execute(self, sql, params=None):
         if not self._tuple_cursor: