annotate tests/time.ur @ 2184:1ecef02f67c5
More Elaborate work to avoid instantiating unification variables with out-of-scope regular variables
| author |
Adam Chlipala <adam@chlipala.net> |
| date |
Sat, 24 Oct 2015 17:23:07 -0400 |
| parents |
c5335613f31e |
| children |
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| rev |
line source |
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adamc@438
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1 table t : { Id : int, Time : time }
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adamc@438
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2
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adamc@436
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3 val now : time = readError "10/30/08 14:35:42"
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adamc@437
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4 val later : time = readError "10/30/08 14:37:42"
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adamc@436
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5
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adamc@438
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6 fun main () =
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adamc@439
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7 dml (INSERT INTO t (Id, Time) VALUES (42, {now}));
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adamc@438
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8 xml <- queryX (SELECT * FROM t)
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adamc@438
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9 (fn r => <xml>{[r.T.Id]}: {[r.T.Time]}<br/></xml>);
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adamc@441
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10 minMax <- oneRow (SELECT CURRENT_TIMESTAMP AS Cur, MIN(t.Time) AS Min, MAX(t.Time) AS Max FROM t);
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adamc@438
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11 return <xml><body>
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adamc@438
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12 {xml}
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adamc@440
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13 {[now]}, {[now = now]}, {[now = later]}, {[later < now]}, {[now < later]}<br/>
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adamc@441
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14 {[minMax.Cur]}, {[minMax.Min]}, {[minMax.Max]}
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adamc@438
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15 </body></xml>
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