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view tests/query.ur @ 251:326fb4686f60
Monoize transaction identifiers; improve disjointness prover on irreducible folds; change 'query' type
author | Adam Chlipala <adamc@hcoop.net> |
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date | Sun, 31 Aug 2008 10:36:54 -0400 |
parents | b6b75e6e0898 |
children | 7f6620853c36 |
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table t1 : {A : int, B : string, C : float} table t2 : {A : float, D : int} datatype list a = Nil | Cons of a * list a val q1 = (SELECT * FROM t1) val r1 : transaction (list {A : int, B : string, C : float}) = query q1 (fn fs acc => return (Cons (fs.T1, acc))) Nil val r2 : transaction string = ls <- r1; return (case ls of Nil => "Problem" | Cons ({B = b, ...}, _) => b) val main : unit -> transaction page = fn () => s <- r2; return <html><body> {cdata s} </body></html>