> This is probably the least useful to most people, but it's very fine if you
> need it. I don't have a project for it now, but I've needed it in the past
> for grpahing.
> A point refers to an X,Y coordinate, so you can store a Lat/Long there. I
> haven't played with Oracle Spatial, so I don't know the WHERE clause syntax,
> but let's say that you are storing landmarks with a point. You can then do a
> query where you pass a point to the database and have it return all items
> within a certain distance from that point. That's a tricky thing to program
> (and optimize) without point data because the distance calculation is based
> on a circle's radius.
> So don't take that dream very seriously, but I just wanted to provide some
> extremely high goals for you to aim at. :)
Ruslan,
For that you may just add support for callbacks for the structure of the
index, i.e. letting the user implements any B-Tree (or whatever)
derivatives. Some of the most advanced algorithms have patents on them and
you may not want to add the cost of those licenses to everybody. However, if
a developer has a specific need, it could add it to over the kernel.
Eric
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Eric Forget Cafederic
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