[gdal-dev] PostgreSQL driver for GDAL1.8.1

[Siju Wu]

Hi,
I began using the GDAL for my master projet last month. Before I used OGR
to read directly the maps of shapefile. But now I need to store the data
first in the database of PostgreSQL and then make access to the database by
using the driver of OGR. However I found that I can't connect the database
by using the function OGRSFDriverRegistrar::Open( source, FALSE ). My code
is as below:


OGRRegisterAll();
 OGRDataSource *poDS;

poDS = OGRSFDriverRegistrar::Open( "PG:dbname='postgis' host='localhost'
     port='5432' user='postgres' password='postgres'", FALSE );
 if( poDS == NULL )
{
printf( "Open failed.\n" );
exit( 1 );
}


the value of poDS is null. Is that means in the version of GDAL there is no
driver for the postgreSQL and I need to write it myself? I work with VS2010
c++ and GDAL 1.8.1. Dose anyone know if there is method to connect the
PostgreSQL by using OGR?

Thanks,
-Michel
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