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A fancier test for the new SQL constraints subtyping
author Adam Chlipala <adam@chlipala.net>
date Mon, 04 Nov 2013 16:00:48 -0500
parents dd12d6d9e9a7
children
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fun main [r] (r : $([A = int] ++ ([B = float] ++ r))) : $([A = float] ++ ([B = int] ++ r)) = r