home clear 64x64
en blue 200x116 de orange 200x116 info letter User
suche 36x36
Neueste VersionenFixList
11.1.0.7 FixList
10.5.0.9 FixList
10.1.0.6 FixList
9.8.0.5 FixList
9.7.0.11 FixList
9.5.0.10 FixList
9.1.0.12 FixList
Haben Sie Probleme? - Kontaktieren Sie uns.
Kostenlos registrieren anmeldung-x26
Kontaktformular kontakt-x26

DB2 - Problembeschreibung

Problem IC95387 Status: Geschlossen

DB2 MIGHT TRAP WHILE COMPILING AN SQL STATEMENT ELIGIBLE FOR STAR JOIN

Produkt:
DB2 FOR LUW / DB2FORLUW / A50 - DB2
Problembeschreibung:
You might encounter a trap when a compiling an SQL statement 
that satisfies the following conditions: 
 
1.  the statement qualifies the starjoin eligibility criteria, 
and 
2.  one or more tables participating in the starjoin apply 
subquery 
predicates, and 
3.  an optimization guideline is applied to the statement 
 
In a trap file, you might see the stack traces as following: 
 
... 
sqlno_crule_nljn 
sqlno_crule_join_choices 
sqlno_crule_join_order 
sqlno_crule_join_root 
sqlno_crule_join 
sqlno_starjn 
... 
 
Following is an example of a query that satisfies conditions 1 
and 2, assuming F is identified as the fact table of the star 
join, and D1 and D2 are the dimension tables: 
 
select F.D1, F.D2, F.D3, F.D4, M, substr(D1.C,1,4) 
from F, D1, D2 
where F.D1=D1.key AND D1.attr<80 AND D1.keya<40 AND 
      F.D2=D2.key AND D2.attr<80 
AND D1.Y not in (select Y from D3 where Y > 10 order by Y);
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* ALL                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* You might encounter a trap when a compiling an SQL statement * 
* that satisfies the following conditions:                     * 
*                                                              * 
* 1.  the statement qualifies the starjoin eligibility         * 
* criteria,                                                    * 
* and                                                          * 
* 2.  one or more tables participating in the starjoin apply   * 
* subquery                                                     * 
* predicates, and                                              * 
* 3.  an optimization guideline is applied to the statement    * 
*                                                              * 
* In a trap file, you might see the stack traces as following: * 
*                                                              * 
* ...                                                          * 
* sqlno_crule_nljn                                             * 
* sqlno_crule_join_choices                                     * 
* sqlno_crule_join_order                                       * 
* sqlno_crule_join_root                                        * 
* sqlno_crule_join                                             * 
* sqlno_starjn                                                 * 
* ...                                                          * 
*                                                              * 
* Following is an example of a query that satisfies conditions * 
* 1                                                            * 
* and 2, assuming F is identified as the fact table of the     * 
* star                                                         * 
* join, and D1 and D2 are the dimension tables:                * 
*                                                              * 
* select F.D1, F.D2, F.D3, F.D4, M, substr(D1.C,1,4)           * 
* from F, D1, D2                                               * 
* where F.D1=D1.key AND D1.attr<80 AND D1.keya<40 AND          * 
*       F.D2=D2.key AND D2.attr<80                             * 
* AND D1.Y not in (select Y from D3 where Y > 10 order by Y);  * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Update to 10.5.0.3                                           * 
****************************************************************
Local-Fix:
Avoid applying the optimization guideline.
verfügbare FixPacks:
DB2 Version 10.5 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.5 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Cancun Release 10.5.0.4 (also known as Fix Pack 4) for Linux, UNIX, and Windows
DB2 Version 10.5 Fix Pack 9 for Linux, UNIX, and Windows

Lösung
Problem Fixed In 10.5.0.3
Workaround
keiner bekannt / siehe Local-Fix
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
27.08.2013
03.03.2014
03.03.2014
Problem behoben ab folgender Versionen (IBM BugInfos)
Problem behoben lt. FixList in der Version
10.5.0.3 FixList
10.5.0.3 FixList