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Interpret 'table' signature items more flexibly, automatically adding (Ur) constraints to support a kind of subtyping over (SQL) constraint sets
author Adam Chlipala <adam@chlipala.net>
date Mon, 04 Nov 2013 15:14:23 -0500
parents a99b743a3087
children
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fun main () : transaction page = return <xml>{[x <- Some 1;
                                               y <- Some 2;
                                               return (x + y)]}</xml>