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DB2 - Problembeschreibung

Problem IC97873 Status: Geschlossen

QUERY MAY PERFORM BAD WHEN CONTAINS OR SCORE FUNCTIONS ARE USED WITH
VARIABLES IN THE SEARCH STRING AND REOPT ONCE IS SPECIFIED

Produkt:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problembeschreibung:
Queries that are bound using REOPT ONCE and that use the 
CONTAINS or SCORE function may perform poorly when the search 
string is a host variable, local variable, global variable, 
parameter marker, special register or when statement 
concentrator is active. In such a situation REOPT ONCE may not 
be effective in enhancing the access plan used for the query. 
 
Applicable to both DB2 text-search and Net Search Extender text 
indexes.
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* ALL                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 9.7 FP 10                                     * 
****************************************************************
Local-Fix:
Use REOPT ALWAYS or use literal values for the search-argument 
of the text search or net search extender function. 
 
In the case of statement concentrator, disable concentration for 
the affected statements using the corresponding bind option, CLI 
attribute or JDBC property.
Lösung
Upgrade to DB2 9.7 FP 10
Workaround
keiner bekannt / siehe Local-Fix
Bug-Verfolgung
Vorgänger  : APAR is sysrouted TO one or more of the following: IC98806 IC98807 
Nachfolger : 
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
22.11.2013
06.02.2015
06.02.2015
Problem behoben ab folgender Versionen (IBM BugInfos)
9.7.FP10
Problem behoben lt. FixList in der Version
9.7.0.10 FixList