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Simple case of joined-sublcass.

Is there a way to load the subclass without the parent being loaded (e.g. have it lazy loaded?)

When I do count(id) on the subclass it does an inner join on the parent which is slow...

Thanks

No. That would break object orientation: an object is made up of all its class' properties, and all its superclasses' properties. To load part of it would be loading part of an object.. so you'd be using property orientation. I think they call that COBOL.

Looks like you want a bidirectional one-to-one instead. That can be lazily loaded. Or maybe you want the superclass to be just the ID (to allow joins to subclasses), and then a separate class mapped to the same table, being the superclass properties class. Hmm.. might work.