[postgis-users] extent buffer issue

[Markus Schaber]

Hi, Ronald,

R. Müller wrote:
> you're right - my fault. But i'm sure, there was a version, this
> construct was working ... ;-)
> 
> the 'extent' was  for aggregating geometries, as in my query i don't
> know how much points are involved. sometimes only one. And thats the
> case where the query was failing.
> 
> probably its better to 'collect' the geometries than 'extent' them, as
> collect returns a valid geometry(-collection) ?

That depends on what you want, it will give different results from what
you get now.


Markus

-- 
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf.     | Software Development GIS

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