activated streams support from db-api

Author: daimor

requirements.txt

@@ -1,2 +1,2 @@
-intersystems_iris>=3.3.0b1
+intersystems_iris>=3.3.0b7
 SQLAlchemy>=1.4

sqlalchemy_iris/requirements.py

@@ -652,8 +652,7 @@ def binary_literals(self):
 
         """
 
-        # return exclusions.open()
-        return exclusions.closed()
+        return exclusions.open()
 
     @property
     def autocommit(self):
@@ -833,16 +832,15 @@ def text_type(self):
         """Target database must support an unbounded Text() "
         "type such as TEXT or CLOB"""
 
-        # return exclusions.open()
-        return exclusions.closed()
+        return exclusions.open()
 
     @property
     def empty_strings_varchar(self):
         """target database can persist/return an empty string with a
         varchar.
 
         """
-        # return exclusions.open()
+        return exclusions.open()
         return exclusions.closed()
 
     @property