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DB2 - Problembeschreibung
| Problem IC66734 | Status: Geschlossen |
ORDER BY WITH XMLTABLE INVOLVING CONSTRUCTED OR INLINED XML DOCUMENTS MAY CRASH INSTANCE. | |
| Produkt: | |
DB2 FOR LUW / DB2FORLUW / 950 - DB2 | |
| Problembeschreibung: | |
If you run a SQL, order by with xmltable table function which
works on a constructed or inlined xml document, as below, the
instance may be crashed. The associated trap file may have
stack trace backs as below.
A snip of an example SQL:
------------
:
(SELECT
XMLELEMENT(NAME "root",
XMLAGG(
XMLELEMENT(NAME "kind",
XMLELEMENT(NAME "id", trim(ki.id)),
XMLELEMENT(NAME "d_id", trim(ki.d_id)),
XMLELEMENT(NAME "name", km.name),
XMLELEMENT(NAME "d", km.d)
)
ORDER BY km.d
) as kind
)
:
, xmltable(
'$KIND/kind[1]' COLUMNS
col1 DECIMAL(8,0) PATH './d',
col2 VARCHAR(10) PATH './id',
col3 VARCHAR(10) PATH './d_id'
)
ORDER BY
col1 ASC, col2 ASC, col3 ASC
;
------------
A snip of the stack trace backs of associated trap file:
------------
--EBP------EIP------ARGS-----------------------------
.. <?getLength@XmlsNidSubdigit@@QAEEXZ>
.. <?xmlrnTestRootNode@@YA_NPAD@Z>
.. <?fetchTempNode@XmlrnNodeMgr@@CAHPAUXMLSTORE_CB@@PAUxml...
.. <?fetchNode@XmlrnNodeMgr@@SAHPAUXMLSTORE_CB@@PAUxmlData...
.. <?fetchNode@XmlrnNodeMgr@@QAEHPAUxmlDataDescriptor@@AAU...
.. <?fetchXDMNode@XmlrnNodeMgr@@QAEHPAUxmlDataDescriptor@@...
.. <?m_traverse@XmlnvNavigator@@AAEH_N@Z>
.. <?getTuple@XmlnvNavigator@@QAEHAA_NPAUsqlrr_cb@@@Z>
.. <?sqlriXMLScan@@YAHPAUsqlrr_cb@@@Z>
------------ | |
| Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * DB2 UDB Version 9.5. * **************************************************************** * PROBLEM DESCRIPTION: * * See Error description field for more information. * **************************************************************** * RECOMMENDATION: * * Upgrade to Version 9.5 FixPack 6. * **************************************************************** | |
| Local-Fix: | |
1. Removeing ORDER BY clause.
In the above case, remove
"ORDER BY col1 ASC, col2 ASC, col3 ASC"
2. Changing ORDER BY clause.
In the above case, change it
from
-----
) ORDER BY col1 ASC, col2 ASC, col3 ASC ;
-----
to
-----
) order by xmlcast(xmlquery('$k/kind[1]/d' passing
kind as "k") as decimal(8,0) ) ;
----- | |
| verfügbare FixPacks: | |
DB2 Version 9.5 Fix Pack 6a for Linux, UNIX, and Windows | |
| Lösung | |
Problem was first fixed in DB2 UDB Version 9.5 FixPack 6. | |
| Workaround | |
keiner bekannt / siehe Local-Fix | |
| Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 26.02.2010 10.09.2010 10.09.2010 |
| Problem behoben ab folgender Versionen (IBM BugInfos) | |
9.5.FP6 | |
| Problem behoben lt. FixList in der Version | |