Fixed a cast exception bug on postgres db

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22031 99afaf0d-6903-0410-885a-c66a8bbb5f81
IN PROGRESS - issue SPAGOBI-1611: Now when an existing cockpit is opened the configuration of each widget is properly set

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22032 99afaf0d-6903-0410-885a-c66a8bbb5f81
OPEN - issue SPAGOBI-1611: Small refactoring

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22033 99afaf0d-6903-0410-885a-c66a8bbb5f81
OPEN - issue SPAGOBI-1611: now only selected columns are visualized in the final grid

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22034 99afaf0d-6903-0410-885a-c66a8bbb5f81
OPEN - issue SPAGOBI-1611: Fixed a small bug on wizard panel

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22035 99afaf0d-6903-0410-885a-c66a8bbb5f81