[cross posting from MS4W ml] I'm working on a Windows 7 machine with PostGIS 1.5 on Postgresql 8.4, with no tuning (default configuration).
I'm facing very bad performances when accessing a polygonal layer on PostGIS. The layer is not that heavy and complex. It is made by 20 polygons with about 4000 to 56000 vertices. The raw query (SELECT the_geom FROM mytable), performed through the psql console, fetches the results in about 185 ms. Logging the layer with DEBUG 5 shows that iterating over the features takes about 7.5 s. The time between consecutive msPostGISLayerNextShape calls is about 0.3/0.4 s. Here is the log file: http://www.giovanniallegri.it/share/mspglog.txt I obtain the same performances with ms4w 3.0.6(MapServer MapScript to 6.0.3) and 3.0.4_dev (MapServer and MapScript 6.1-dev), which PostGIS is 1.5 on Postgresql 8.4, with no customized options. I'm working on a Windows 7 machine, but the work should be deployed on a Windows Server 2003. I'm not using connection pooling, but I was facing similar performances before disabling it. giovanni
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