1 files changed, 4 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
index a94259a875..4ab4fc8aa3 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
@@ -13,6 +13,10 @@ module ActiveRecord
 
         class Type
           def type; end
+
+          def type_cast_for_write(value)
+            value
+          end
         end
 
         class Identity < Type