[Dbix-class] Lazy Instantiation?

[Steve Francia]

Doing some reading on DBIx::Class, I came across the following:
http://www.gossamer-threads.com/lists/catalyst/users/3095

> * Column values maybe "lazily loaded," meaning that are fetched from
> the database at the last possible moment rather then being loaded up
> front.

Does this apply to relationships? eg.
Can DBIC lazily instantiate the related objects?
Can DBIC lazily fetch the related ids?

For performance and scalability, such features would be very desirable..
If DBIC doesn't currently support it, would anyone be interested in
joining me it writing a patch for it?

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