Bugs item #1835745, was opened at 2007-11-21 13:58
Message generated for change (Comment added) made by boncz
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Category: PF/runtime
Group: Pathfinder 0.20
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Hans (hans_0_)
Assigned to: Nobody/Anonymous (nobody)
Summary: XQ: recursive function call gives wrong result
Initial Comment:
version: Supersource tarball SR3.
Compiled on fedora core 5, 64-bit with 32-bits oid.
The following xquery returns an erroneous result:
The query:
declare function test($nodes as node()*) {
for $n in $nodes[./self::a]
let $c := test($n/*)
where (count($c) > 0)
order by $n/@name
return element a { $n/@name, $c } ,
for $n in $nodes[./self::b] return $n
};
test(<x><a name="1"></a><a name="2"><a name="y"><b name="2"/></a></a></x>/*) ,
test(<x><a name="1"><a name="x"/></a><a name="2"><a name="y"><b
name="2"/></a></a></x>/*)
<>
Returns:
<a name="2"><a name="y"><b name="2"/></a></a>,
<a name="1"><a name="y"><b name="2"/></a></a>
Expected result is:
<a name="2"><a name="y"><b name="2"/></a></a>,
<a name="2"><a name="y"><b name="2"/></a></a>
If the order by clause is omitted, the result is correct, except for the
ordering.
Regards,
Hans van Rijswijk.
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>Comment By: Peter Boncz (boncz)
Date: 2007-11-27 16:00
Message:
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nested order by in milprint-summer is buggy (see some W3C tests that have
been failing for a long time).
this will not be fixed. the algebra backend does not have these problems.
----------------------------------------------------------------------
Comment By: Stefan Manegold (stmane)
Date: 2007-11-21 17:20
Message:
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Test added in
pathfinder/tests/BugTracker/Tests/recursive_function.SF-1835745.*
(XQuery_0-20 branch).
Confirms that without "order by" the result is as expected, while it is
not with "order by".
Further investigations still need to be performed.
Volunteer(s)?
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