Hi,
I was testing code that returned a sorted sequence of nodes, but my test cases
were failing irratically. It took me some time to figure out the exact cause,
but it looks like the order of sorted node sets is not maintained properly. I
think that it should be maintained, and am failing to see a logical reason for
this behaviour. Contrarely, the order of sorted sequences of atomic values is
mainted properly.
Anyone observed this behaviour before? Anyone who would like to comment on this
behaviour? Is there a logical explanation? The declare ordering doesn't seem to
influence this behaviour. Should it?
Here the code to reproduce the problem. Run it multiple times in CQ to see what
happens..
xquery version "1.0";
declare default function namespace
"http://www.w3.org/2005/xpath-functions";;
declare ordering ordered;
declare default order empty least;
declare construction preserve;
let $test := (
<object object-id="a"/>,
<object object-id="b"/>,
<object object-id="c"/>
)
return (
'>>Predictable order<<',
$test/self::object/@object-id/string(.),
'>>Unpredictable order<<',
for $id in $test/self::object/@object-id
return
string($id)
)
Kind regards,
Geert
Drs. G.P.H. Josten
Consultant
http://www.daidalos.nl/
Daidalos BV
Source of Innovation
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2665 JZ Bleiswijk
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http://www.daidalos.nl/
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