Mercurial > urweb
annotate tests/agg.ur @ 1489:4437b008e0ab
Narrow Maybe match case.
| author | Karn Kallio <kkallio@eka> |
|---|---|
| date | Wed, 06 Jul 2011 18:54:23 -0430 |
| parents | 601a77af0477 |
| children |
| rev | line source |
|---|---|
| adamc@235 | 1 table t1 : {A : int, B : string, C : float} |
| adamc@1187 | 2 table t2 : {A : float, D : int, E : option string} |
| adamc@235 | 3 |
| adamc@1194 | 4 val q1 : sql_query [] _ _ = (SELECT COUNT( * ) FROM t1) |
| adamc@1194 | 5 val q2 : sql_query [] _ _ = (SELECT AVG(t1.A) FROM t1) |
| adamc@1194 | 6 val q3 : sql_query [] _ _ = (SELECT SUM(t1.C) FROM t1) |
| adamc@1194 | 7 val q4 : sql_query [] _ _ = (SELECT MIN(t1.B), MAX(t1.A) FROM t1) |
| adamc@1194 | 8 val q5 : sql_query [] _ _ = (SELECT SUM(t1.A) FROM t1 GROUP BY t1.B) |
| adamc@1194 | 9 val q6 = (SELECT COUNT(t2.E) FROM t2 GROUP BY t2.D) |
| adamc@237 | 10 |
| adamc@1187 | 11 fun main () : transaction page = |
| adamc@1194 | 12 xml <- queryX q6 (fn r => <xml>{[r.1]};</xml>); |
| adamc@1194 | 13 xml2 <- queryX q4 (fn r => <xml>{[r.1]}, {[r.2]};</xml>); |
| adamc@1194 | 14 return <xml><body>{xml}<br/>{xml2}</body></xml> |