log lib/ur/top.urs

age author description
Thu, 20 Jan 2011 12:43:12 -0500 Adam Chlipala queryXI and queryX1I
Sat, 15 Jan 2011 14:53:13 -0500 Adam Chlipala Allow subqueries to reference aggregate-only columns of free tables; treat non-COUNT aggregate functions as possibly returning NULL