Mercurial > urweb
annotate tests/include.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> |
|---|---|
| date | Sat, 15 Jan 2011 14:53:13 -0500 |
| parents | 71bafe66dbe1 |
| children |
| rev | line source |
|---|---|
| adamc@58 | 1 signature S = sig |
| adamc@58 | 2 type t |
| adamc@58 | 3 val x : t |
| adamc@58 | 4 end |
| adamc@58 | 5 |
| adamc@58 | 6 signature S' = sig |
| adamc@58 | 7 include S |
| adamc@58 | 8 val y : t |
| adamc@58 | 9 end |
| adamc@58 | 10 |
| adamc@58 | 11 signature S'' = sig |
| adamc@58 | 12 type u |
| adamc@58 | 13 include S' where type t = int |
| adamc@58 | 14 type v |
| adamc@58 | 15 end |