Mercurial > urweb
view tests/coalesce.ur @ 1657:2b7d3d99dc42
Prevent unifications of 'others' pieces in record summaries, when both pieces contain unification variables (to prevent undesired unifications)
author | Adam Chlipala <adam@chlipala.net> |
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date | Thu, 05 Jan 2012 17:10:43 -0500 |
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>)