[Gdal-dev] OGR Sqlite driver

Frank Warmerdam warmerdam at pobox.com
Thu Aug 9 08:17:22 EDT 2007


Dave Robertson wrote:
> Hi,
> 
> There have been numerous  comments over the last few years about the 
> desirability of improving the SQLite OGR driver.
> 
> On 10 Nov 2005 Frank Warmerdam wrote (on the GeoWanking list ):
> 
>> The OGR SQLite driver is pretty simplistic currently. It only supports 
>> geometries if they are in a column named WKT_GEOMETRY and they have to 
>> be in WKT format. It also does not currently support any spatial 
>> indexing.
>>
>> The OGR SQLite driver also does not currently preserve spatial 
>> reference information.
>     ...
>> We could extend the driver to support OGC style GEOMETRY_COLUMNS 
>> tables, spatial reference tables and indexing by bounding box. As well 
>> we likely ought to switch to WKB (at least optionally) for the 
>> geometry column.
> 
> These seem to be very useful goals, and I wonder whether anyone is 
> working on implementing this?
> If not, then how much demand is there, and should a feature request be 
> submitted?

Dave,

I am not aware of work on the SQLite driver other than a recent patch to
ensure that features have the fid set after a call to CreateFeature().

You could file an enhancement request as way of organizing suggested
improvements, but generally I find that enhancement requests just fill
up the bug system with stuff that is likely to never get done, so I'm
not that fond of them. (unless they come with patches!)

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    | President OSGeo, http://osgeo.org




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