[mapserver-users] Problem GetFeature with geom filter on WFS

[Stéphane Brunner]

Hello,

2011/8/24 Rahkonen Jukka <Jukka.Rahkonen at mmmtike.fi>:
> Hi,
>
> I am not too familiar with PostGIS, but isn't this && exactly an index based
> BBOX query which is checking if the BBOX of the feature is intersecting with
> the BBOX of the reference geometry?
> where geom &&
>> >> GeomFromText('POLYGON((620000 218000,620000 278000,690000
>> >> 278000,690000 218000,620000 218000))',-1)
This BBox is the Extents of the mapfile than in our case it always return true.

>
>  Then perhaps what you wrote
> "MapServer filters them correctly but as we get
>> only the 100 first results from the DB, we miss many objects and/or
>> they are not related to the area where we want to apply a geographical
>> filter. "
>
> could better be written "as we get only the 100 first results within the
> BBOX filtered with fast but inaccurate index search, the result set after
> Mapserver applying a geographical filter may have less that 100 features".
Yes, but with a so large BBOX (extent from the mapfile, not geometry
extent) in most cases it returns 0 results.

Sincerely
Stéphane Brunner

>
> -Jukka Rahkonen-
>
>
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