use enum value to ensure case sensitive value is used

superset/connectors/sqla/models.py

@@ -93,8 +93,8 @@ class MetadataResult:
 
 
 class AnnotationDatasource(BaseDatasource):
-    """ Dummy object so we can query annotations using 'Viz' objects just like
-        regular datasources.
+    """Dummy object so we can query annotations using 'Viz' objects just like
+    regular datasources.
     """
 
     cache_timeout = 0
@@ -1375,9 +1375,9 @@ def import_obj(
     ) -> int:
         """Imports the datasource from the object to the database.
 
-         Metrics and columns and datasource will be overrided if exists.
-         This function can be used to import/export dashboards between multiple
-         superset instances. Audit metadata isn't copies over.
+        Metrics and columns and datasource will be overrided if exists.
+        This function can be used to import/export dashboards between multiple
+        superset instances. Audit metadata isn't copies over.
         """
 
         def lookup_sqlatable(table_: "SqlaTable") -> "SqlaTable":
@@ -1510,7 +1510,9 @@ class RowLevelSecurityFilter(Model, AuditMixinNullable):
 
     __tablename__ = "row_level_security_filters"
     id = Column(Integer, primary_key=True)
-    filter_type = Column(Enum(utils.RowLevelSecurityFilterType))
+    filter_type = Column(
+        Enum(*[filter_type.value for filter_type in utils.RowLevelSecurityFilterType])
+    )
     group_key = Column(String(255), nullable=True)
     roles = relationship(
         security_manager.role_model,