DB2 - Problembeschreibung
Problem IC68419 | Status: Geschlossen |
POSSIBLE WRONG RESULTS: COALESCE ON FULL OUTER JOIN OF 2 SUBSELE CTS THAT OUTPUT >= 1 NOT-NULL COLUMNS AND A LITERAL OR GROUP BY | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / 980 - DB2 | |
Problembeschreibung: | |
Incorrect results may be returned if following conditions are satisfied: 1) FULL OUTER JOIN (FOJ) used in query 2) COALESCE function used on two or more columns after application of FOJ 3) The first parameter column to COALESCE sources from a not-nullable base-table column 4) The inputs to FOJ are nested subselects 5) One or both nested subselects either: 5.a) Output a constant literal as a column, which is used after application of FOJ, OR 5.b) Contain a GROUP BY clause where the output columns of the subselect are columns, literals, column functions or deterministic functions only | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * ALL * **************************************************************** * PROBLEM DESCRIPTION: * * see ERROR DESCRIPTION * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 Version 9.8 Fix Pack 4. * **************************************************************** | |
Local-Fix: | |
Rewrite any problematic queries to preclude any of the conditions above, e.g., use a CASE expression instead of COALESCE | |
verfügbare FixPacks: | |
DB2 Version 9.8 Fix Pack 4 for AIX and Linux | |
Lösung | |
First fixed in DB2 Version 9.8 Fix Pack 4. | |
Workaround | |
keiner bekannt / siehe Local-Fix | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 04.05.2010 09.08.2011 09.08.2011 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
9.8.FP4 | |
Problem behoben lt. FixList in der Version | |
9.8.0.4 |