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Re: Best practice for Core Data "ordered" NSArray problem?
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Re: Best practice for Core Data "ordered" NSArray problem?


  • Subject: Re: Best practice for Core Data "ordered" NSArray problem?
  • From: Gordon Apple <email@hidden>
  • Date: Fri, 28 Sep 2007 13:47:36 -0500

    The basic fact is that an array is an array and a set is a set  Sure,
the implementation could vary, depending on performance constraints.  What
he (and others) have asked for is any solution (or reference to a solution).
A lot of us would like to see it.  I haven't tackled core data or BigTen
yet, so I don't know what is involved.  I just know I'm going to have to
crack that nut sometime soon.  Fortunately, my current stuff is mostly in
the small array ( <100 ) category.

> Actually this is probably not the case.  The difficulty (as I
> understand it) is that while there are many, many people who want to
> have ordered collections in their databases, each program has subtle
> differences in it's requirements that make this a difficult problem to
> solve in a generic fashion.  For example, my application likes to
> order small groups of objects (say 20 at the most) while another
> program might need to order 100,000 objects.  Each of these two
> applications might use a different strategy.
>

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