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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 int =
ls <- r1;
return (case ls of
Nil => 0
| Cons ({A = a, ...}, _) => a)
|
