I have a ArcGIS feature class of geometry type polygon. It was created as a convex hull with a 200 meter buffer on a point dataset, aggregating rows on a particular field. The number of points used to generate each polygon is variable, starting at 1. I use ogr2ogr to upload from a personal geodatabase (.MDB) to a remote PostGIS database, and MapServer 5.4 to display. All features are uploaded successfully, but those polygon features that were generated from a single point do not plot using MapServer. Based on how the polygons are generated, all those based on a single point ought to be circles with radii of 200 meters.
In the PostGIS table the geometry field is empty for all those features, and following a tip I found here I tried "select st_npoints(wkb_geometry) from merged_dist_areas;" and it appears all the "missing" polygon features have no points at all, which may explain why they do not plot.
What can I do to plot these circles?