Mercurial > urweb

view tests/coalesce.ur @ 2185:cbd294994c69

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Monad.mapR3
author Adam Chlipala <adam@chlipala.net>
date Sat, 31 Oct 2015 11:49:30 -0400
parents e44be6ece475
children
line wrap: on
line source
table t : { A : option int }

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