On Wed, Nov 12, 2014 at 2:16 PM, fmd85 <florian-di...@gmx.de> wrote:
> geowolf wrote
> > Hi,
> > I've never tried, but did you setup the store to expose the primary key
> as
> > normal
> > attributes? I don't think we have a way to join on the feature
> identifiers
> > (which
> > is what the primary keys become when geotools handles them)
>
> Hi,
>
> at the beginning i used
> DataStore ds= DataStoreFinder.getDataStore(propertiesMap);
>
> After that i got my FeatureSource with
> SimpleFeatureSource source = ds.getFeatureSource("Table_A");
>
>
> After Ron's reply (thanks Ron!) i changed the DataSource to
> JDBCDataStore ds = (JDBCDataStore)
> DataStoreFinder.getDataStore(propertiesMap);
> ds.setExposePrimaryKeyColumns(true);
>
> Now the primary keys get found and i can use them in the Join-Statement,
> but
> i get an SQLException (Invalid column index). I think i'v got another
> mistake now.
>
You are probably stumbling into http://jira.codehaus.org/browse/GEOT-4868,
which got fixed end of September 2014 on the master, 12.x and 11.x series.
If that's the case, you'll need to upgrade GeoTools
Cheers
Andrea
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@geowolf
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