[mapserver-users] MS7 wfs

[Even Rouault]

Selon Steve.Toutant at inspq.qc.ca:

> hello
> Using mapserver 7 I make this request to get the number of features in a
> WFS layer. it returns numberOfFeatures="450361"
>
http://localhost/cgi-bin/ms7?version=1.1.0&request=getfeature&service=wfs&typename=feature:aqreseau&resultType=hits
>
> this layer is a postgis table on localhost.
> This request takes 18 seconds to run with mapserver 7
> in postgis select count(*) from  table takes 61ms to run
> the same request using a geoserver WFS takes less than 1 second
>
> Is there something that can be done with MS7 to improve performance?

Not really unfortunately. Efficient count is something that should be
implemented. Currently it basically retrieves each individual feature and
iterates over them. So it takes nearly as much as time as getting the full
features.

> thanks
>
>
>


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