DB2 - Problembeschreibung
Problem IC96728 | Status: Geschlossen |
QUERY MAY RETURN INCORRECT RESULTS WHEN IT CONTAINS A SUB-SELECT WITH CORRELATION AND A FETCH FIRST N ROWS CLAUSE | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 | |
Problembeschreibung: | |
A query may return wrong results under certain condition. The characteristics of the affected query are: a) it will contain a FETCH FIRST n ROWS clause b) the sub-select or full-select containing the FETCH FIRST n ROWS clause from (a) will contain a nested sub-select or EXISTS predicate or IN subquery predicate. c) The nested sub-select from (b) will contain an outer-reference to another input to the sub-select or full-select from (a) After gathering the db2exfmt output for potential queries that may be impacted, it will typically contain a SORT operator that reduces the stream cardinality to the value specified in the FETCH FIRST n ROW clause and a NLJOIN operator without predicates above the SORT, one of whose inputs is the sub-select containing the outer-reference. | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * All Platforms * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to DB2 LUW Version 9.7 Fixpack 9 * **************************************************************** | |
Local-Fix: | |
Rewrite the query to eliminate the outer-reference in the sub-select. | |
verfügbare FixPacks: | |
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows | |
Lösung | |
The APAR will be fixed in DB2 LUW Version 9.7 Fixpack 9 | |
Workaround | |
keiner bekannt / siehe Local-Fix | |
Bug-Verfolgung | |
Vorgänger : APAR is sysrouted TO one or more of the following: IC97915 IC97916 Nachfolger : | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 08.10.2013 17.12.2013 17.12.2013 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
9.7.FP9 | |
Problem behoben lt. FixList in der Version | |
9.7.0.9 | |
9.7.0.9 |