[Qgis-developer] Geospackage Slow in QGIS

Stefan Keller sfkeller at gmail.com
Sat May 17 05:24:42 PDT 2014


Hi Martin

It has a different binary encoding compared to Spatialite.
And in addition it integrates raster tiles (MBTiles) and metadata.

-S.


2014-05-17 14:10 GMT+02:00 Martin Dobias <wonder.sk at gmail.com>:

> Hi
>
> On Sat, May 17, 2014 at 2:32 PM, Jeremy Palmer <JPalmer at linz.govt.nz>
> wrote:
> > I've just been using the new implementation of Geopackage in QGIS :)
> However each map render or feature info is very slow for large database
> files - even with the new GDAL/OGR Geopackage spatial index support. Each
> time QGIS renders a new map view or executes a feature info it re-opens the
> Geopackage file in QgsOgrFeatureIterator via OGROpen, and the Geopackage
> driver open method runs PRAGMA integrity_check which is very slow (4 secs
> with my 2GB test file). This integrity check is actually a Geopackage
> requirement.
> >
> > How can this be fixed? At the in QGIS or GDAL/OGR level?
>
> Actually I am wondering how different is the format of GeoPackage from
> the format of SpatiaLite... we could use our native SpatiaLite
> provider also for GeoPackage files if they are close enough. Any
> ideas?
>
> Regards
> Martin
> _______________________________________________
> Qgis-developer mailing list
> Qgis-developer at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-developer
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20140517/76075440/attachment.html>


More information about the Qgis-developer mailing list