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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 2e93d18daf44
children
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fun main () : transaction page = return <xml><body>
  {txt _ (1 = 1)}, {txt _ (1 = 2)}<br/>
  {txt _ (1 <> 1)}, {txt _ (1 <> 2)}<br/>
  {txt _ (True = True)}, {txt _ (True = False)}<br/>
  {txt _ (True <> True)}, {txt _ (True <> False)}<br/>
  {txt _ ("A" = "A")}, {txt _ ("A" = "B")}<br/>
  {txt _ ("A" <> "A")}, {txt _ ("A" <> "B")}<br/>
</body></xml>