[Gdal-dev] OGR Shape file Index usage

[bartvde at xs4all.nl]

Hi,

There are plans to use the Mapserver type of quadtree index for shapefiles
(file extension qix) in OGR, but AFAIK this has not yet been incorporated
into OGR.

Best regards,
Bart

> Hi All,
>
> I am trying to use OGR to access a rather large (~90M) shape file with
> about 215,000 polygons. I am using a spatial filter in my execute call.
> The result set is about 3,000 objects but it takes about 20 seconds to
> execute on a pretty fast machine.  Does OGR use the index file for this
> query? Is there something else that I can do to speed this up?
>
> Thanks a lot,
>
> Rostic
>
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