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view tests/subquery.ur @ 1892:907a82a44f01

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Add missing inter-library dependencies This is needed, at least on recent Ubuntu, to fix these linker errors when compiling any Ur/Web application: liburweb.so: undefined reference to `lround' liburweb.so: undefined reference to `ceil' liburweb.so: undefined reference to `RAND_bytes' liburweb.so: undefined reference to `DES_fcrypt' liburweb.so: undefined reference to `SHA256_Init' liburweb.so: undefined reference to `SHA256_Final' liburweb.so: undefined reference to `SHA256_Update' Signed-off-by: Anders Kaseorg <andersk@mit.edu> --- src/c/Makefile.am | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
author Anders Kaseorg <andersk@mit.edu>
date Thu, 21 Nov 2013 14:32:11 -0500
parents 9c82548c97e9
children
line wrap: on
line source
table t : { A : int, B : int, C : int }

fun main () =
    v <- queryX1 (SELECT t.A, t.C
                  FROM t
                  WHERE t.B = (SELECT MAX(U.B) AS M
                               FROM t AS U
                               WHERE U.A = t.A))
                 (fn r => <xml>{[r.A]},{[r.C]};</xml>);
    v' <- queryX1 (SELECT t.A, t.C
                   FROM (SELECT t.A AS A, MAX(t.B) AS B
                         FROM t
                         GROUP BY t.A) AS Maxes
                   JOIN t ON t.A = Maxes.A AND t.B = Maxes.B)
                  (fn r => <xml>{[r.A]},{[r.C]};</xml>);
    return <xml><body>
      {v}<br/>
      {v'}
    </body></xml>