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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>
date Sat, 15 Jan 2011 14:53:13 -0500
parents d008c4c43a0a
children
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type q = (fn p => p.1) (int, float)
type q = (fn p => p.1 * $p.3) (int, float, [])