Hi Paolo, On Tue, 15. Jul 2014 at 08:50:10 +0200, Paolo Cavallini wrote: > > 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.
As slow as SELECT DISTINCT attribute FROM table ORDER BY attribute LIMIT 10 ? Jürgen -- Jürgen E. Fischer norBIT GmbH Tel. +49-4931-918175-31 Dipl.-Inf. (FH) Rheinstraße 13 Fax. +49-4931-918175-50 Software Engineer D-26506 Norden http://www.norbit.de QGIS release manager (PSC) Germany IRC: jef on FreeNode -- norBIT Gesellschaft fuer Unternehmensberatung und Informationssysteme mbH Rheinstrasse 13, 26506 Norden GF: Jelto Buurman, HR: Amtsgericht Emden, HRB 5502 _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
