Mercurial > urweb
view tests/coalesce.ur @ 1738:1a35e75b6967
Catch duplicate top-level module names; fix dropping of constraints during incremental elaboration; document treatment of record types as type class instance types
author | Adam Chlipala <adam@chlipala.net> |
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date | Thu, 03 May 2012 09:56:41 -0400 |
parents | e44be6ece475 |
children |
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table t : { A : option int } fun main () : transaction page = queryX (SELECT COALESCE(t.A, 13) FROM t) (fn r => <xml>{[r.1]},</xml>)