Hi Matteo, On Tue, 20. Jan 2015 at 09:47:50 +0100, Matteo Ghetta wrote: > yes, the column is ID.
Meaning that ID is the only column in au? Did you try to use ID instead of *? > On Fri, 16. Jan 2015 at 10:48:16 +0100, Matteo Ghetta wrote: > > GDAL execution console output > > > > ERROR 1: SQL Expression Parsing Error: syntax error > Maybe GROUP BY function is not supported in Processing yet? Well, I don't really know processing, but it looks more like an error from OGR. Anyway, my observation was just about the SQL. You usually don't use * with GROUP BY, because you can only select columns that appear in the GROUP BY and can only use other in aggregate functions (min, max, sum...). Maybe you can use: select distinct id from au 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
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