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view tests/modproj.ur @ 1394:d328983dc5a6
Allow subqueries to reference aggregate-only columns of free tables; treat non-COUNT aggregate functions as possibly returning NULL
author | Adam Chlipala <adam@chlipala.net> |
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date | Sat, 15 Jan 2011 14:53:13 -0500 |
parents | 71bafe66dbe1 |
children |
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signature S1 = sig type t val zero : t end signature S2 = sig type t = int val zero : t end structure S = struct type t = int val zero = 0 end structure S1 : S1 = S structure S2 : S2 = S type t = S1.t val zero : t = S1.zero type t = S2.t val zero : int = S2.zero structure T = S1 val main : S1.t = T.zero