DB2 - Problembeschreibung
Problem IT05326 | Status: Geschlossen |
DB2 MIGHT PRODUCE INCORRECT RESULT WHEN REFERENCING EMPTY TABLE WITH AGGREGATE FUNCTIONS IN SUBSELECT | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / A10 - DB2 | |
Problembeschreibung: | |
Under rare scenarios, DB2 might produce incorrect results if the following conditions are true: 1) The query references the SYSIBM.SYSDUMMY1 table or a VALUES clause. 2) The sub-select referencing table from 1) contains an aggregation function. 3) The sub-select also has some predicate, which will lead to an empty result set. 4) The topmost select does not reference any column from the aforementioned sub-select. Example: select 1 from (SELECT AVG(1) FROM SYSIBM.SYSDUMMY1 where 1=0); 1 ----------- 0 record(s) selected. The correct result is a single row with null value. | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * UNKNOWN * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 version 101 fix pack 5 * **************************************************************** | |
Local-Fix: | |
Lösung | |
The problem was first fixed in DB2 version 101 fix pack 5 | |
Workaround | |
keiner bekannt / siehe Local-Fix | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 03.11.2014 12.08.2015 12.08.2015 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
Problem behoben lt. FixList in der Version | |
10.1.0.5 |