2009-01-07 | Sylvain Thenault | consider intersect *and* distinct | file | diff | annotate |
2009-01-07 | Sylvain Thenault | in some cases (eg ambiguous neged relations), INTERSECT should be used instead of DISTINCT | file | diff | annotate |
2008-11-05 | Adrien Di Mascio | Showtime ! | file | diff | annotate |