[Qgis-developer] Geospackage Slow in QGIS
sfkeller at gmail.com
Sat May 17 05:24:42 PDT 2014
It has a different binary encoding compared to Spatialite.
And in addition it integrates raster tiles (MBTiles) and metadata.
2014-05-17 14:10 GMT+02:00 Martin Dobias <wonder.sk at gmail.com>:
> On Sat, May 17, 2014 at 2:32 PM, Jeremy Palmer <JPalmer at linz.govt.nz>
> > 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
> > 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
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