Hi all, I've been recently involved in the development of "virtual layers" for QGIS. The topic has already been discussed previously. In a few words it allows to craft SQL queries (with spatial support) on any vector layer(s) that QGIS is able to load.
Now I have a plugin that is usuable and allows you to get familiar with the concept and test it. More details are given here (with links to some videos): https://github.com/mhugo/qgis_vlayers A binary version of the plugins for Windows 32bits is available here : http://91.121.102.10/vlayers/qgis_28_vlayers_4_win32.zip An integration of virtual layers in db manager is provided, but it is better served with an improved version of db manager. A pull request about this is being reviewed (https://github.com/qgis/QGIS/pull/2025). You can also directly find it here : http://91.121.102.10/vlayers/db_manager_with_query_builder_and_vlayers.zip Please do not hesitate to test this new functionality and report bugs or requests (here or on the github page) Now the next step would be to lead toward a proper integration into QGIS core. I am already aware of some limitations that I have listed. I would be happy to have any other feedback. The hackfest next week could also be a good place to discuss it (I will be presenting it during the conference) Cheers. Hugo _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer