DB2 - Problembeschreibung
Problem IT26439 | Status: Geschlossen |
JOIN OF COLUMN-ORGANIZED TABLES MIGHT RETURN INCORRECT RESULTS | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 | |
Problembeschreibung: | |
Starting with 10.5 FP3, wrong results may be returned from queries containing join on columnar tables with the following conditions: 1) the query joins multiple column organized tables 2) the join predicates reference expressions 3) implicit column equivalence can be derived from these join predicates | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * ALL * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to Db2 10.5 Fix Pack 11 or higher * **************************************************************** | |
Local-Fix: | |
Work-around: 1) Lower optlevel 2) force the join order to join tables with join predicate first 3) rewrite the query to add join predicates to express the implicit column equivalence | |
Lösung | |
Workaround | |
See LOCAL FIX | |
Bug-Verfolgung | |
Vorgänger : IT26322 Nachfolger : | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 27.09.2018 25.02.2020 25.02.2020 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
Problem behoben lt. FixList in der Version |