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annotate tests/sql_ops.ur @ 1668:64c1e65c2365
Prevent horrifying loops in unification variable graph
| author | Adam Chlipala <adam@chlipala.net> |
|---|---|
| date | Mon, 09 Jan 2012 16:20:10 -0500 |
| parents | 5d494183ca89 |
| children |
| rev | line source |
|---|---|
| adamc@559 | 1 table t : { A : int, B : float } |
| adamc@559 | 2 |
| adamc@559 | 3 val q = (SELECT t.A + t.A AS X, t.B * t.B AS Y FROM t) |
| adamc@559 | 4 |
| adamc@559 | 5 fun main () : transaction page = |
| adamc@559 | 6 xml <- queryX q (fn r => <xml>{[r.X]}, {[r.Y]}<br/></xml>); |
| adamc@559 | 7 return <xml><body>{xml}</body></xml> |
| adamc@559 | 8 |