[mapserver-users] Filter Point features from PostGIS Layer
Julien Cigar
jcigar at ulb.ac.be
Fri Sep 2 05:15:46 PDT 2011
On 09/02/2011 14:02, Julien Cigar wrote:
> couldn't you use WHERE ST_GeometryType(col) = "ST_Point" ?
also note that to avoid a seqscan you should create an appropriate index:
CREATE INDEX your_index ON your_table(ST_GeometryType(geom)) WHERE
ST_GeometryType(geom) = 'ST_Point';
>
> On 09/02/2011 13:50, kaipi wrote:
>> I have a PostGIS database with polygon, line and point features. I
>> want to
>> make a Mapserver layer, that only displays the point features. AFAIK
>> without
>> such filtering Mapserver would render in a Point-Type-Layer also the
>> polygon
>> features as points.
>> How would a FILTER or EXPRESSION look like to tell Mapserver to only
>> query
>> for point features ?
>>
>> Thanks,
>>
>> Harry
>>
>> --
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>>
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>
>
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