fix for older version of sqlalchemy

Author: daimor

.github/workflows/python-publish.yml

@@ -22,8 +22,8 @@ jobs:
       fail-fast: false
       matrix:
         image:
-          - containers.intersystems.com/intersystems/iris-community:latest-cd
-          - containers.intersystems.com/intersystems/iris-community:latest-preview
+          - latest-cd
+          - latest-preview
         engine:
           - old
           - new
@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-latest
     services:
       iris:
-        image: ${{ matrix.image }}
+        image: containers.intersystems.com/intersystems/iris-community:${{ matrix.image }}
         ports:
         - 1972:1972
         options: >-

sqlalchemy_iris/types.py

@@ -56,6 +56,14 @@ def process(value):
 
         return process
 
+    def literal_processor(self, dialect):
+        def process(value):
+            if isinstance(value, datetime.date):
+                return "'%s'" % value.strftime("%Y-%m-%d")
+            return value
+
+        return process
+
 
 class IRISTimeStamp(sqltypes.DateTime):
     __visit_name__ = "TIMESTAMP"
@@ -84,6 +92,14 @@ def process(value):
 
         return process
 
+    def literal_processor(self, dialect):
+        def process(value):
+            if isinstance(value, datetime.datetime):
+                return "'%s'" % value.strftime("%Y-%m-%d %H:%M:%S.%f")
+            return value
+
+        return process
+
 
 class IRISDateTime(sqltypes.DateTime):
     __visit_name__ = "DATETIME"
@@ -108,6 +124,14 @@ def process(value):
 
         return process
 
+    def literal_processor(self, dialect):
+        def process(value):
+            if isinstance(value, datetime.datetime):
+                return "'%s'" % value.strftime("%Y-%m-%d %H:%M:%S.%f")
+            return value
+
+        return process
+
 
 class IRISTime(sqltypes.DateTime):
     __visit_name__ = "TIME"
@@ -140,6 +164,14 @@ def process(value):
 
         return process
 
+    def literal_processor(self, dialect):
+        def process(value):
+            if isinstance(value, datetime.time):
+                return "'%s'" % value.strftime("%H:%M:%S.%f")
+            return value
+
+        return process
+
 
 if sqlalchemy_version.startswith("2."):