[postgis-users] noding problem

[Paul Ramsey]

Yes, that is all the magic there is to the "distance is faster"  
assertion. Obviously it's only faster for cases where there are lots  
of fully contained candidates that return immediately on the first  
point test.

P

On 25-Oct-07, at 4:24 AM, Obe, Regina wrote:

>  Am I safe in saying that distance treats the case of distance() ==  
> 0 as
> a special case - e.g. you can't get lower than 0 for distance so there
> is no point in checking any further?