[fdo-users] MapInfo provider

Jackie Ng jumpinjackie at gmail.com
Wed Mar 25 18:33:25 EDT 2009

I did notice some DateTime-related breakage when the GDAL/OGR library was upgraded to 1.6


- Jackie

Hi Frank,

DateTime support is implemented in the OGR FDO provider, but not tested, so maybe it has bugs.

FDO expression support can be implemented in the provider as well.


-----Original Message-----
From: fdo-users-bounces at lists.osgeo.org [mailto:fdo-users-bounces at lists.osgeo.org] On Behalf Of Frank Warmerdam (External)
Sent: Wednesday, March 25, 2009 12:02 PM
To: FDO Users Mail List
Subject: Re: [fdo-users] MapInfo provider

On Wed, Mar 25, 2009 at 10:49 AM, Kenneth Skovhede, GEOGRAF A/S
<ks at geograf.dk> wrote:
> That depends on what you want to accomplish.
> I find that speed is very good, even better than SDF when using TAB files.
> All the data I have tested with renders fine, but date/time columns are not
> supported.


I do believe that date/time support has been incorporated into MITAB and
the OGR bindings in recent versions of OGR.  If not it might be worth
filing a ticket on this.  Does the OGR FDO provider support date/time fields?
They are a relatively recent addition to OGR.

> But, the OGR only supports a geometry and a single logical expression.
> It would be cool to have it support arbitrary FDO expressions.
> If that is your target, I belive some of the other providers have much of
> the logic for this,
> and that it would be a better solution than a pure MI provider.

Is this an improvement that can be done right in the FDO OGR provider?

Overall, I'd prefer to see the requirement for good mapinfo support drive
improvements to the FDO OGR provider (and perhaps OGR/MITAB)
rather than do something really custom.

Best regards,
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent
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