> Note 3: Unless the whole array has already been loaded into memory,
> that's horribly inefficient.  Nested sets are the way to go here.
>
> Best,
> --
> Marnen Laibow-Koserhttp://www.marnen.org
> [email protected]
> --
> Posted viahttp://www.ruby-forum.com/.

Seems interesting, could you sketch up how that would work?

Balint
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