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view tests/thog.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 | 714e8b84221b |
children |
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fun ack (m, n) = if m = 0 then n + 1 else if n = 0 then ack (m - 1, 1) else ack (m - 1, ack (m, n - 1)) fun main n = return <xml>{[ack (n, 4)]}</xml>