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view tests/coalesce.ur @ 1637:e374b6b8ab38

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Allow .urp libraries to set prefix
author Adam Chlipala <adam@chlipala.net>
date Sat, 17 Dec 2011 13:10:23 -0500
parents e44be6ece475
children
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table t : { A : option int }

fun main () : transaction page =
    queryX (SELECT COALESCE(t.A, 13)
            FROM t)
    (fn r => <xml>{[r.1]},</xml>)