Matthew <matthew@flymine.org> writes:
>> This sounds like something an R-tree can do.

> I *know* that. However, Postgres (as far as I can see) doesn't provide a
> simple R-tree index that will index two integers. This means I have to
> write one myself. I'm asking whether it is possible to get two values into
> a GiST index, which would allow me to implement this.

Have you looked at contrib/seg/ ?

regards, tom lane

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