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annotate tests/pcase.ur @ 1394:d328983dc5a6

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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>
date Sat, 15 Jan 2011 14:53:13 -0500
parents 71bafe66dbe1
children
rev   line source
adamc@173 1 val flip = fn x : int => case x of 0 => 1 | _ => 0
adamc@173 2
adamc@173 3 val zero = flip 1
adamc@173 4 val one = flip 0
adamc@173 5
adamc@173 6 val flipS = fn x : string => case x of "" => "Hello world!" | _ => ""
adamc@173 7
adamc@173 8 val s1 = flipS ""
adamc@173 9 val s2 = flipS "Boop"