On Wed, Jan 11, 2012 at 1:17 PM, Gis Mage <[email protected]> wrote:
> Hi list!
>
> I need to get the statistics of an attribute (min, max, average) from
> the server.
> Can I use a WFS GetFeature request for that?
> Or is there an existing WPS process for this task?
>
> I found Collection_Max,Collection_Median,Collection_Min in filter
> functions, but how can I use them in the request?
> GetFeature is supposed to return features and their attributes, not
> attribute statistics.
>
Indeed WFS is the wrong tool from the job, it can only return data as is,
it's not possible to get derived or aggregated information.
WPS has a AggregateProcess that can do one or more statistics
on a given vector layer field.
Cheers
Andrea
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