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Problem IC91333
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Status: Closed |
XQUERY MAY RETURN INCORRECT RESULT WHEN WHERE CLAUSE PREDICATE HAS CERTAIN FORMAT AND XML INDEX IS USED |
| product: |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 |
| Problem description: |
xrquery may return incorrect results when the following
conditions are all met:
1. There is XML index created on xpath expression, called
"xpath_exp".
2. XQUERY contains a comparison WHERE predicate "a_variable"
<comp_op> "xpath_exp".
2.1. "a_variable" is a variable specified by LET clause. It is
bound to an expression that casts a literal value to XML type.
2.2 <comp_op> is one out of {>, >=, <=, <}.
2.3 "xpath_exp" is placed at predicate right side. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 UDB version 10.1 fixpack 3. *
**************************************************************** |
| Local Fix: |
(1) Change XQUERY statement. Identify predicates falling into
condition 2's format. Rewrite predicate to "xpath_exp"
<reverse_comp_op> "a_variable".
(2) Drop XML index. |
| available fix packs: |
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows
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| Solution |
Problem was first fixed in DB2 UDB Version 10.1 FixPack 3. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 04.04.2013
07.10.2013
07.10.2013 |
| Problem solved at the following versions (IBM BugInfos) |
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| Problem solved according to the fixlist(s) of the following version(s) |
| 10.1.0.3
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| 10.1.0.3
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