Mercurial > urweb
annotate demo/refFun.urs @ 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 | cb5897276abf |
| children |
| rev | line source |
|---|---|
| adamc@419 | 1 functor Make(M : sig |
| adamc@419 | 2 type data |
| adamc@419 | 3 val inj : sql_injectable data |
| adamc@419 | 4 end) : sig |
| adamc@419 | 5 type ref |
| adamc@419 | 6 val new : M.data -> transaction ref |
| adamc@419 | 7 val read : ref -> transaction M.data |
| adamc@419 | 8 val write : ref -> M.data -> transaction unit |
| adamc@419 | 9 val delete : ref -> transaction unit |
| adamc@419 | 10 end |