Mercurial > urweb
view tests/sql_ops.ur @ 1394:d328983dc5a6
Allow subqueries to reference aggregate-only columns of free tables; treat non-COUNT aggregate functions as possibly returning NULL
author | Adam Chlipala <adam@chlipala.net> |
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date | Sat, 15 Jan 2011 14:53:13 -0500 |
parents | 5d494183ca89 |
children |
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table t : { A : int, B : float } val q = (SELECT t.A + t.A AS X, t.B * t.B AS Y FROM t) fun main () : transaction page = xml <- queryX q (fn r => <xml>{[r.X]}, {[r.Y]}<br/></xml>); return <xml><body>{xml}</body></xml>