[gdal-dev] Gdalinfo slow with big Rasterlite tables

2012-08-18 Thread Jukka Rahkonen
Hi, I converted 153600 x 249600 pixels of rasterdata into a Rasterlite table. After creating overviews the result behaves well in Quantum GIS once the table is opened. Unfortunatly opening the table with QGis installed on a mini PC takes ages. I do not know what QGis is really doing but I

Re: [gdal-dev] Gdalinfo slow with big Rasterlite tables

2012-08-18 Thread Even Rouault
Jukka, Is gdalinfo perhaps walking through every single tile in the rasterlite table for gathering the image layer info? Could there be any other way to do it in more effective way on the GDAL side? The Rasterlite driver needs to fetch the extent of the _metadata layers to establish

[gdal-dev] [Proposed new feature] A 'SQLite SQL dialect for OGR

2012-08-18 Thread Even Rouault
Hi folks, I've attached in http://trac.osgeo.org/gdal/attachment/ticket/4782/sqlite_dialect.patch a patch that adds a SQLite alternate SQL dialect that can be used with any OGR datasource (only available if GDAL/OGR is configured with SQLite support of course) To remind you the concept of

Re: [gdal-dev] [Proposed new feature] A 'SQLite SQL dialect for OGR

2012-08-18 Thread Smith, Michael ERDC-RDE-CRREL-NH
This is wicked cool. Mike -- Michael Smith US Army Corps Remote Sensing GIS/Center On 8/18/12 1:03 PM, Even Rouault even.roua...@mines-paris.org wrote: Hi folks, I've attached in http://trac.osgeo.org/gdal/attachment/ticket/4782/sqlite_dialect.patch a patch that adds a SQLite alternate