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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I would expect to see a bbox query using the bbox of your search shape. That would then identify candidate shapes, likely a much smaller set, for which actual
intersection tests are done. I’ll defer to the WFS devs for a bit more insight.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Steve<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Marc-André Trottier [mailto:trottier.marcandre@gmail.com]
<br>
<b>Sent:</b> Wednesday, November 30, 2011 12:28 PM<br>
<b>To:</b> Lime, Steve D (DNR); mapserver-users@lists.osgeo.org<br>
<b>Subject:</b> Re: [mapserver-users] wfs request getfeature with polygon<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">there is my POST : <br>
<br>
<code><span style="font-size:10.0pt"><wfs:GetFeature xmlns:wfs="<a href="http://www.opengis.net/wfs">http://www.opengis.net/wfs</a>" service="WFS" version="1.1.0" xsi:schemaLocation="<a href="http://www.opengis.net/wfs">http://www.opengis.net/wfs</a>
<a href="http://schemas.opengis.net/wfs/1.1.0/wfs.xsd">http://schemas.opengis.net/wfs/1.1.0/wfs.xsd</a>" xmlns:xsi="<a href="http://www.w3.org">http://www.w3.org</a>/2001/XMLSchema-instance"><wfs:Query typeName="ms:MSSS_SGS_P" srsName="EPSG:32198"><ogc:Filter
xmlns:ogc="<a href="http://www.opengis.net/ogc">http://www.opengis.net/ogc</a>"><ogc:Intersects><ogc:PropertyName>geometry</ogc:PropertyName><gml:Polygon xmlns:gml="<a href="http://www.opengis.net/gml">http://www.opengis.net/gml</a>" srsName="EPSG:32198"><gml:exterior><gml:LinearRing><gml:posList>-206501.9511156373
322690.6403888138 -222920.53608453833 315197.18794487417 -217872.36749086587 305166.3182788128 -205933.97268351325 315573.2833999051 -206501.9511156373 322690.6403888138</gml:posList></gml:LinearRing></gml:exterior></gml:Polygon></ogc:Intersects></ogc:Filter></wfs:Query></wfs:GetFeature></span></code><span style="font-size:10.0pt;font-family:"Courier New""><br>
<br>
<code>we got some performance issues with 4 millions features.</code><br>
<br>
</span><o:p></o:p></p>
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<p class="MsoNormal">2011/11/30 Lime, Steve D (DNR) <<a href="mailto:Steve.Lime@state.mn.us">Steve.Lime@state.mn.us</a>><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">What exactly is the WFS filter being used? Only certain queries are done wholly in the database.
Most often bbox tests</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">are done in the database with other work done in MapServer. We hope to move more load off to the
database</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">eventually. Are you seeing performance issues?</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Steve</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a href="mailto:mapserver-users-bounces@lists.osgeo.org" target="_blank">mapserver-users-bounces@lists.osgeo.org</a> [mailto:<a href="mailto:mapserver-users-bounces@lists.osgeo.org" target="_blank">mapserver-users-bounces@lists.osgeo.org</a>]
<b>On Behalf Of </b>Marc-André Trottier<br>
<b>Sent:</b> Tuesday, November 29, 2011 5:06 PM</span><o:p></o:p></p>
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<p class="MsoNormal"><br>
<b>To:</b> <a href="mailto:mapserver-users@lists.osgeo.org" target="_blank">mapserver-users@lists.osgeo.org</a><br>
<b>Subject:</b> [mapserver-users] wfs request getfeature with polygon<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p>! i'm doing a WFS GetFeature request with a polygon.<o:p></o:p></p>
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<p class="MsoNormal"><br>
Usually everything is fine. <br>
but for one table a got a enconding error with my data. (my problem) and the mapserver's log give me this SQL :<o:p></o:p></p>
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<p>select "nom","adresse","postal","code","telephone","postal0","etab_code","etab_nom","rss_code","rss_nom","rls_code","rls_nom","clsc_code","clsc_nom","mun_code","mun_nom","longitude","latitude","sgs","hsld","clsc","pdi","pdp","pat","cj","sp","objectid","nom_commun",encode(ST_AsBinary(ST_Force_2D("geom_p"),'NDR'),'hex')
as geom,"objectid" from msss_v_sgs_p where geom_p && GeomFromText('POLYGON((-1100000 -23500,-1100000 2253500,1100000 2253500,1100000 -23500,-1100000 -23500))',find_srid('','msss_v_sgs_p','geom_p'))<o:p></o:p></p>
<p>So my question, Why is mapserver does a spatial query with the layer's extent?<br>
with a table of 2millions features, that,s very slow even with a spatial index<o:p></o:p></p>
<p>marc-andre trottier<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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