Hey guys, I've been thinking lately about polymorphic associations, and I wonder: is there a noticeable or tangible performance "hit" from doing polymorphic associations when you've got your database under really high query load?
So for example, maybe I have a "message" model, a "user" model and an "administrator" model, without any subclassing or STI going on. Message has a polymorphic interface called "message_author", and both "User" and "Administrator" use it. Say there wind up being ~1 million messages in that message table. Assuming everything's properly indexed, do polymorphic associations add any significant overhead to conducting database queries? Thanks guys, appreciate the input. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
