Il 15/07/2014 09:22, Jürgen E. Fischer ha scritto: > As slow as > > SELECT DISTINCT attribute FROM table ORDER BY attribute LIMIT 10 apparently yes - probably I had some additional slowdown. sorry for the noise. -- Paolo Cavallini - www.faunalia.eu Corsi QGIS e PostGIS: http://www.faunalia.eu/training.html