> My question is: could this be a jdbc-driver bug? I can't tell, but I've > used another RDBMS with cayenne and database structure discovery worked > flawlessly there. Could be a cayenne issue, but the developers suggest > it's probably not, but could be worked arround if needed.
If you can get some info about exactly what the postgresql driver is returning that is incorrect or not what cayenne expects, then you might make some progress.. Otherwise this is a bit vague.