[Qgis-developer] Sample

Paolo Cavallini cavallini at faunalia.it
Mon Jul 14 23:50:10 PDT 2014

Il 15/07/2014 08:11, Nathan Woodrow ha scritto:

> Yeah I'm thinking it might just be slow for something like shapefile where is there
> no index on that column and it has to get each value to find the unique ones.  I'm
> not looking at the code, just guessing.

Thanks for your comments.
I found it rather slow for large PostGIS tables.
All the best.
Paolo Cavallini - www.faunalia.eu
Corsi QGIS e PostGIS: http://www.faunalia.eu/training.html

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