Bugs item #2141012, was opened at 2008-10-01 22:13
Message generated for change (Comment added) made by boncz
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Category: PF general
Group: Pathfinder "stable"
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Loredana Afanasiev (lafanasi)
Assigned to: Nobody/Anonymous (nobody)
Summary: XQ: unclear error
Initial Comment:
Hi,
I have two identical in content collections, but one is read only the other is
updatable. I have two queries, which are identical with the exception of one
line that indicates the queried collection. Query 1 retrieves results, query 2
produces the error. I don't have any good guesses why..
[EMAIL PROTECTED] xq]$ diff tmp1.xq tmp2.xq
1c1
< let $col := fn:collection("MotiesTweedeKamer")
---
> let $col := fn:collection("MotiesTweedeKamer_Updatable")
[EMAIL PROTECTED] xq]$ mclient -lx -g tmp1.xq
<result count="1" year=""/>,
...
[EMAIL PROTECTED] xq]$ mclient -lx -g tmp2.xq
MAPI = [EMAIL PROTECTED]:50000
QUERY = let $col := fn:collection("MotiesTweedeKamer_Updatable")
ERROR = !ERROR: err:FORG0003: function fn:zero-or-one expects at most one value.
cheers,
l.
----------------------------------------------------------------------
Comment By: Peter Boncz (boncz)
Date: 2008-12-09 00:46
Message:
I did:
$ ls | wc
27946 27946 335352
$ ls *xml | awk 'BEGIN { print "<a>"} { printf "<b
p=\"/export/scratch0/boncz/bug/XML/%s\" f=\"%s\"/>\n", $1, $1 } END { print
"</a>" }' > /tmp/g.xml
Then I see that in algebra mode, fn:collection() returns the wrong count
for the updatable collection:
more>for $d in doc("/tmp/g.xml")//b return pf:add-doc(exactly-one($d/@p),
exactly-one($d/@f), "rdonly")
more><>
xquery>count(fn:collection("rdonly"))
more><>
27946
xquery>for $d in doc("/tmp/g.xml")//b return
pf:add-doc(exactly-one($d/@p), concat(exactly-one($d/@f),"_"), "wr", 10)
more><>
xquery>count(fn:collection("wr"))
more><>
28012
That is, the child step does not work correctly from the pf:collection()
node:
xquery>count(pf:collection("wr")/child::text())
more><>
42
xquery>count(pf:collection("wr")/child::attribute())
more><>
0
xquery>count(pf:collection("wr")/child::element())
more><>
38
xquery>count(pf:collection("wr")/child::node())
more><>
28012
(this holds for both mps and alg)
Funny thing is that 27946 + 38 + 42 = 28026, not 28012 ???
I think the child step should be fixed to properly support the collection
node...
----------------------------------------------------------------------
Comment By: Sjoerd Mullender (sjoerd)
Date: 2008-10-07 17:36
Message:
I can reproduce the error in the development version after I loaded all
data. I didn't try the stable version (yet).
----------------------------------------------------------------------
Comment By: Loredana Afanasiev (lafanasi)
Date: 2008-10-03 18:49
Message:
Hi Stefan,
here's the data:
http://staff.science.uva.nl/~lafanasi/data.tgz
and the queries are:
::::::::::::::
tmp1.xq
::::::::::::::
let $col := fn:collection("MotiesTweedeKamer")
let $years := fn:distinct-values(
for $date in $col//hiddendatum
return fn:substring(fn:string($date),1,4))
for $y in $years
order by $y ascending
return <result year="{$y}" count="{
count($col//document[fn:substring(fn:string(.//hiddendatum),1,4) =
$y])}"/>
::::::::::::::
tmp2.xq
::::::::::::::
let $col := fn:collection("MotiesTweedeKamer_Updatable")
let $years := fn:distinct-values(
for $date in $col//hiddendatum
return fn:substring(fn:string($date),1,4))
for $y in $years
order by $y ascending
return <result year="{$y}" count="{
count($col//document[fn:substring(fn:string(.//hiddendatum),1,4) =
$y])}"/>
Thanks,
l.
----------------------------------------------------------------------
Comment By: Stefan Manegold (stmane)
Date: 2008-10-01 22:50
Message:
Loredana,
could you please provide us with (e.g., attach) the complete queries, and
possible also with (access to) the document collections you are using?
Thanks in advance!
Stefan
----------------------------------------------------------------------
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