[Gdal-dev] PGeo and ODBC support in OGR

[Frank Warmerdam]

On 12/2/05, Tamas Szekeres <szekerest at gmail.com> wrote:
> Folks,
>
>
> If the data source could provide the bounding box of the shape adding a
> spatial filter support is not a difficult challenge.
>
> The only problem is how to inform the driver about the columns of the
> bounding box. Is applies to the reporting of the fid column as well.
>
> Due to the significant benefits of these issues it would be considerable to
> maintain default column names (eg. ogc_fid, minx, miny, maxx, maxy) since
> one can apply the proper aliases to support them without any problem.

Tamas,

The ODBC driver will currently recognise tables with an xmin,
ymin, xmax, and ymax column and treat them specially as a
shape spatial extent for purposes of spatial queries.  This is a
fairly recent addition (2-3 weeks ago).

Best regards,
--
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