Bugs item #2640943, was opened at 2009-02-26 09:43
Message generated for change (Comment added) made by nobody
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Category: Query Execution
Group: Sedna (current)
Status: Open
Resolution: Accepted
Priority: 9
Private: No
Submitted By: Ivan Shcheklein (shcheklein)
Assigned to: Ivan Shcheklein (shcheklein)
Summary: Infinite recursion may crash Sedna

Initial Comment:
### Bug report replaces first part of the  
### PR/2636813 
(https://sourceforge.net/tracker/?func=detail&aid=2636813&group_id=129076&atid=713730)

se_trn.exe process may crash because of (say) infinite recursion in
XQuery (apparently causing stack overflow), invalid characters and so on.
When a crash happens, the system dialog shows up prompting to debug the
process.

Suggestion: Add something like top-level exception handler to se_trn.exe
code, so that even if fatal exception occurs, the process still finishes
gracefully with appropriate diagnostic information. On Windows, the event
log is a good place where to submit diagnostic information.


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Comment By: Nobody/Anonymous (nobody)
Date: 2009-04-14 15:42

Message:
This XQuery crashes Senda ?:

declare default element namespace
"http://www.mediawiki.org/xml/export-0.3/";;

for $a in
index-scan('article-by-title','NASA','EQ')//link/@label/string(.)
for $b in index-scan('article-by-title','Outer
space','EQ')//link/@label/string(.)
for $c in
index-scan('article-by-title','Satellite','EQ')//link/@label/string(.)
for $d in index-scan('article-by-title','Project
Gemini','EQ')//link/@label/string(.)
for $e in
index-scan('article-by-title','Radar','EQ')//link/@label/string(.)
return $a


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https://sourceforge.net/tracker/?func=detail&atid=713730&aid=2640943&group_id=129076

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