[postgis-devel] Boxes cache and type (was: Caching Double-based Boxes)

[Mateusz Łoskot]

On 25 November 2011 12:59, Sandro Santilli <strk at keybit.net> wrote:
> On Fri, Nov 25, 2011 at 11:54:01AM +0000, Mateusz Łoskot wrote:
>> On 25 November 2011 09:38, Nicklas Avén <nicklas.aven at jordogskog.no> wrote:
>> > In my example I posted in last post, the difference is 0.3 meters! It is
>> > no microunits we are talking about.
>> >
>> > The result is also that the ordering is wrong. You don't get the nearest
>> > point when you expect it.
>>
>> AFAIU, if error tolerance at 5-th or 6th d.p is enough,
>
> It's not about decimal places, but significant digits.

Indeed, d.p. vs s.f. misuse


Best regards,
--