annotate tests/relops.lac @ 243:2b9dfaffb008
Transactions and queries, at source level
| author |
Adam Chlipala <adamc@hcoop.net> |
| date |
Thu, 28 Aug 2008 14:48:33 -0400 |
| parents |
016d71e878c1 |
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| rev |
line source |
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adamc@229
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1 table t1 : {A : int, B : string, C : float}
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2 table t2 : {A : float, D : int}
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3
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4 val q1 = (SELECT * FROM t1
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5 UNION SELECT * FROM t1)
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6 val q2 = (SELECT t1.A, t1.B FROM t1 WHERE t1.A = 0
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7 INTERSECT SELECT t1.B, t1.A FROM t1 WHERE t1.B = t1.B)
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8 val q3 = (SELECT t1.A, t1.B, t1.C FROM t1 WHERE t1.A = 0
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9 INTERSECT SELECT * FROM t1 WHERE t1.B = 'Hello world!'
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10 EXCEPT SELECT * FROM t1 WHERE t1.A < t1.A)
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