Importing a PostGres Data Source
PostGres data sources can also be imported with a VRT file. Below is an example of the VRT format for PostGres:
<OGRVRTDataSource>
<!-- OGR virtual format: http://www.gdal.org/ogr/drv_vrt.html -->
<!-- PostgreSQL driver: http://www.gdal.org/ogr/drv_pg.html -->
<OGRVRTLayer name="brt_2008_gen">
<SrcDataSource>PG:dbname=wfs user=user password=pass</SrcDataSource>
<SrcLayer>brt_2008_gen</SrcLayer>
<GeometryType>wkbPolygon</GeometryType>
<!-- Do not use GeometryField; doesn't work with OGR 1.5 -->
<!--GeometryField encoding="WKB" field="the_geom"/-->
</OGRVRTLayer>
</OGRVRTDataSource>