Fri, 16 Jan 2009 18:31:13 +0100 | sylvain thenault | need_intersect test and fixes | file | diff | annotate |
Wed, 07 Jan 2009 14:55:16 +0100 | Sylvain Thenault | consider intersect *and* distinct | file | diff | annotate |
Wed, 07 Jan 2009 09:47:56 +0100 | Sylvain Thenault | in some cases (eg ambiguous neged relations), INTERSECT should be used instead of DISTINCT | file | diff | annotate |