some more fixes for official driver

Author: daimor

sqlalchemy_iris/requirements.py

@@ -960,8 +960,8 @@ def datetime_literals(self):
         literal string, e.g. via the TypeEngine.literal_processor() method.
 
         """
-
-        return exclusions.open()
+        # works stable only on Community driver
+        return self.community_driver
 
     @property
     def datetime(self):

tests/test_alembic.py

@@ -93,14 +93,18 @@ def define_tables(cls, metadata):
         @classmethod
         def insert_data(cls, connection):
             connection.execute(
-                text(
-                    """
-                    insert into tab (col) values
-                        ('some data 1'),
-                        ('some data 2'),
-                        ('some data 3')
-                """
-                )
+                cls.tables.tab.insert(),
+                [
+                    {
+                        "col": "some data 1",
+                    },
+                    {
+                        "col": "some data 2",
+                    },
+                    {
+                        "col": "some data 3",
+                    },
+                ],
             )
 
         def test_str_to_blob(self, connection, ops_context):